Math, asked by saurabh6299045953, 10 months ago

find the value of cos (-1710°).​

Answers

Answered by GlitteringStar98
3

Answer:

Step-by-step explanation:

Value of Cos(-1710∘)

cos(−1710∘)  =    cos(1710∘)                                              ∵cos(−x)=cos(x)

cos(1710∘)    =     cos(1800∘−90∘)

cos(1710∘)    =      cos(360∘⋅5−90∘)

cos(1710∘)     =      cos(−90∘)                                          ∵cos(360∘⋅n±x)=cos(±x)

cos(1710∘)     =       cos(90∘)=0

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