Question

if sin theta=1/✓2 find cost theta

Answer 1

Given that


sin∅ = 1/√2


Now we know that the value of sin45° is 1/√2


But here it's given that sin∅ = 1/√2

So Let us equate them :)

=> sin∅ = sin45°

=> ∅ = 45°


Now we know the value of ∅ so we can calculate cos∅

∅ = 45°

=> cos∅ = cos45°

=> cos∅ = 1/√2


Hope it helps dear friend ☺️✌️

Answer 2

sin theta = P/B =1/√2
=>B=√2P
Cot theta = B/P
putting the value of B :-
√2P/P
=√2


Hope it will help you.



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