Math, asked by ram5156, 11 months ago

(Q33) Evaluate: (a) sec? 37º – cot° 53'tan 21°.tan 69º – sin 51'.cos 39° - cos 51°.sin 39º.
(b) cos? 0° + cos²1° + cos? 2° + cos? 3° + .......... + cos? 88° + cos? 89'.

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Answered by JeewanLuitel

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I don't know about this question

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