Question

(ii) If 20° + x is an acute angle and cos (20° + x) = sin 60°, then find the value
of x.
2


Plz show the perfect working ​

Answer 1

Answer:

cos(20 + x) =sin60 = cos(90-60) = cos30.

Answer 2

Step-by-step explanation:

x=root 3-140/2

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