Question

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Answer 1

Given: in triangle abc, angle c=90°

To Find :sin(a+b)

Solution:

In any triangle sum of all angles of triangle is 180°

Hence <a + <b + <c = 180°

<c = 90° given

=> <a + <b + 90° = 180°

=> <a + <b = 90°

sin(a+b) = Sin (90°)

=> sin(a+b) = 1.

I hope it is helpful for you.

Answer 2

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The Carnatic Wars established British supremacy in trade in India. The Battle of Plassey laid the foundation of British Empire in India. The Battle of Buxar established the British as masters of Bengal, Bihar and Orissa and made them a great power of Northern India and contenders for the supremacy of the whole country.