Selina Concise Mathematics Class 10 ICSE Solutions Chapter 21

Selina Concise Mathematics Class 10 ICSE Solutions Chapter 21 - Trigonometrical Identities

Selina Concise Mathematics Class 10 ICSE Solutions Trigonometrical Identities

Selina Publishers Concise Mathematics Class 10 ICSE Solutions Chapter 21 Trigonometrical Identities (Including Trigonometrical Ratios of Complementary Angles and Use of Four Figure Trigonometrical Tables)

Trigonometrical Identities Exercise 21A – Selina Concise Mathematics Class 10 ICSE Solutions

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Question 11.

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Question 21.

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Question 30.

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Question 31.

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Question 48.

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Trigonometrical Identities Exercise 21B – Selina Concise Mathematics Class 10 ICSE Solutions

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Trigonometrical Identities Exercise 21C – Selina Concise Mathematics Class 10 ICSE Solutions

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Question 11.

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Question 12.

Without using trigonometrical tables, evaluate:

cosec2 57° – tan233° + cos 44° cosec46° –

cos45° – tan260°

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Trigonometrical Identities Exercise 21D – Selina Concise Mathematics Class 10 ICSE Solutions

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Trigonometrical Identities Exercise 21E – Selina Concise Mathematics Class 10 ICSE Solutions

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To prove that :

Hence proved.

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Question 14.

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Question 16.

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Question 17.

Evaluate without using trigonometric tables,

sin2 28° + sin2 62° + tan2 38° – cot2 52° +

sec2 30°

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Selina Concise Mathematics Class 10 ICSE Solutions Chapter 21 - Trigonometrical Identities

ICSE Solutions for Class 9 History and Civics | Indian History World Developments and Civics ICSE Class IX Question Answers Total Solutions APC Avichal Publishing Company BB Tayal

📚 ICSE Solutions for Class 9 History and Civics ICSE Solutions for Class 9 History and Civics Indian History, World Developments and Civics for ICSE Class- IX by BB-Tayal of Avichal Publishing Company (APC) Buy ICSE Total History & Civics For Class 9 (Latest Syllabus 2022 ) Online Icse Total History & Civics For Class 9 (Latest Syllabus 2022) HISTORY The Harappan Civilization Early Vedic Civilization The Later Vedic Age India in the 6th Century BC: Rise of Jainism and Buddhism The Mauryan Empire The Sangam Age: Kingdoms and The Social and Economic Conditions The Age of the Guptas South India and the Cholas The Delhi Sultanate The Mughal Empire The Composite Culture: Bhakti Movement, Sufism and Influence of Christianity on Indian Society The Renaissance The Reformation Industrial Revolution and Capitalism and Socialism CIVICS Our Constitution and Its Preamble Fundamental Rights, Fundamental Duties and Dir

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ICSE Solutions for Class 9 History and Civics - The Harappan Civilization

ICSE Solutions for Class 9 History and Civics – The Harappan Civilization ICSE Solutions for Class 9 History and Civics – The Harappan Civilization Exercises Question 1. Mention any two sources to reconstruct the Harappan Civilization. Answer: The remains of the two towns, Mohenjo-daro and Harappan reveal and remarkable sense of town planning—the drainage system, the Great Bath, the Assembly Hall and other public buildings. From Seals we come to know about the physical features, dress, ornaments and religious beliefs of the people. Question 2. Why did the Indus Valley Civilization come to be known as Harappan Civilization? Answer: Indus Valley Civilization came to be known as Harappan Civilization because this Civilization flourished in the pre-historic cities of Harappan in West Punjab and Mohenjo-daro in Sind. Question 3. Mention any two important centres of the Indus Valley Civilization. Answer: Northern and Western parts of India and the present day Pakistan.

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ICSE Solutions for Class 9 History and Civics - The Delhi Sultanate

ICSE Solutions for Class 9 History and Civics – The Delhi Sultanate ICSE Solutions for Class 9 History and Civics – The Delhi Sultanate EXERCISES Question 1. Who laid the foundation of the Delhi Sultanate? Answer: Qutub-ud-din Aibak laid the foundation of the Delhi Sultanate. Question 2. Name any two Inscriptions to reconstruct the age of the Delhi Sultanate. Answer: The Pehowa Inscription, Sarban Inscription. Question 3. Mention any two ways in which Inscriptions may be used for reconstructing the history of the Delhi Sultanate. Answer: Inscriptions — These are valuable supplements and not the sole sources of information on the Delhi Sultanate. The inscriptions are found on coins, monuments, milestones and tombstones. Some of the inscriptions are in Sanskrit, some in Arabic and some in both the languages. For example, the first coin issued by Muhammad Bakhtiyar Khilji bears both Arabic and Sanskrit inscriptions. Similarly, the famous traveller Ibn B

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