Question

find the value of cos + sin when cos = 1/2​

Answer 1

cos theta =1/2

hypotonuse =2

adjacent side =1

then by using phythagoras theorem finding opposite side ,

the opposite side is root 3

then finding cos + sin

1/2+root 3/2

so the answer is 1+root 3/ 2

Answer 2

Answer:

cos theta =1/2

thus ,theta =60 degree (from trigonometric table )

now cos theta + sin theta

=cos 60 degree + sin 60 degree

=1/2 + root 3/2

=(1+root3)/2

Step-by-step explanation:

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