1.

The value of tita for which cos (10° + tita) = sin 30°, is​

Answer»

Answer:

50°

Step-by-step EXPLANATION:

sin and COS are are complementary relations

⇒sinθ = cos(90°-θ)

In the given QUESTION,

cos(10°+θ)=sin30°

Therefore,

30° + 10° + θ = 90°

θ = 50°



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