Math, asked by shrutisingh5950, 7 months ago

question 11 whoever will do will be marked as brainliest i will report wrong and unwanted answers kindly give fast

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Answered by neelb274

1

Answer:

Proven that it is = 0

Step-by-step explanation:

cos 70/sin 20 + cos 59/sin 31 - 8 sin² 30 = 0

LHS:

= 1 + 1 - 8/4 = 2 - 2 = 0 = RHS

Hence, proved.

Answered by Anonymous

1

Answer:

Q11 (I)

see the attached pic

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