Math, asked by arunimask100, 12 days ago

find the value of cos 1020°

Answers

Answered by zeppelin

3

Answer:

cos 1020° = cos (90X11+30)

It lies in the IVth quadrant

Therefore, its value will be equal to +sin 30°

(since 11 is an odd number, trignometric function changes)

= +1/2

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