Trigonometry | if Tan A = root 2 - 1 show that Sin A . Cos A = Root 2 upon 4 #trigonometry

Trigonometry | if Tan A = root 2 - 1 show that Sin A . Cos A = Root 2 upon 4 #trigonometry

==== QUESTION TEXT ====

If `tanA=sqrt(2)-1` show that `sinAcosA=(sqrt(2))/4`

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if tan theta=sqrt(2)-1 prove that sin theta*cos theta=(1)/(2sqrt(2))
if tan a =√2-1 show that tan a/1+tan2a=√2/4
if tan a=√2-1 show that sina cosa=√2/4
If tan theta=root 2-1
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What are Trigonometric Ratios
Different types of Trigonometric Ratios
Trignometric Identities
Sin2 theta + Cos2 theta =1
1 - sin2 Thera = Cos2 theta
1- cos2 theta = sin2 theta
1+ tan2 theta = Sec2 theta
Sec2 theta - tan2 thetaqq = 1
Sec2 theta - 1 = tan2 theta
1+ cot2 theta = cosec2 theta
Cosec2 theta - cot2 theta = 1
Cosec2 theta - 1 = cot2 theta
Sun (90-theta) = cos theta
Cos (90- theta) = sin theta
Tan (90- theta) = cot theta
Cot (90-theta) = tan theta
Sec (90 - theta) cosec theta
Cosec (90 - theta) = sec theta
Sin theta / cos theta = tan theta
Cos theta / sin theta = cot theta
How to find the value of theta

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