If cos3θ = √32; 0 < θ < 200, then value of θ is:
15 degrees
10 degrees
0 degrees
12 degrees
cos3θ= √32 =cosθ
3θ = 30∘
θ = 10∘
If cos 3θ=√32; 0∘<θ<20∘ , then value of θ is:
If cos3θ=√32; 0<3θ<180∘, then value of θ is: