Question

If sin teta1 + sin teta2 + sin teta3 = 3
Find cos teta1 + cos teta2 + costeta 3

Answer 1

Answer:

0

Step-by-step explanation:

osθ1+cosθ2+cosθ3=0

Explanation:

Value of sine ratio ranges from −1 to 1 i.e. [−1,1]

Now as sinθ1+sinθ2+sinθ3=3

We must have each of them as 1

and hence θ1=θ2=θ3=90∘

and as cos90∘=0

cosθ1+cosθ2+cosθ3=0

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