Question

evaluate cos 58 degree by sin 32 degree + sin 22 degree by cos 68 degree minus cos 90 degree

Answer 1

the correct answer to this question is 2

Answer 2

Answer:

It's 2

Step-by-step explanation:

cos   58  = cos( 90 - 32) = sin 32

sin 22 = sin ( 90 - 68) = cos 68

Therefore, cos 58 / sin 32 + sin 22 / cos 68 - cos 90 =

[ sin 32 / sin 32 ] + [ cos 68 / cos 68 ] - 0

= 1 + 1 - 0

= 0

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