Question

If cos theta =1/√2,then cot theta=

Answer 1

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We assume theta=A.

CosA=1/√2

CosA=base/hypotenuse.

B=1,H=√2.

By Pythagoras theory

H^2=P^2+B^2

2=P+1

P=1.

Cot A=1/tanA

CotA = cosA/sinA

Cot A=B/H/P/H

Cot A =B/H×H/P

Cot A=1. Answer

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