(1-tanA)/(1+tanA) बराबर है-...

`(1-tanA)/(1+tanA)` बराबर है-

A

`tan(45^(@)-A)`

B

`cot(45^(@)-A)`

C

`tanA`

D

`cotA`

Verified by Experts

The correct Answer is:

A

(1-tanA)/(1+tanA) बराबर है-
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(tanA)/(1+secA) - (tanA)/(1-secA) = 2cosecA
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Prove that : (secA+1)/(tanA)=(tanA)/(secA-1)
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Prove that (tanA)/((1-cotA))+(cotA)/((1-tanA))=(1+tanA+cotA).
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tan((pi)/4+A)=(1+tanA)/(1-tanA)
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tan((pi)/4-A)=(1-tanA)/(1+tanA)
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tan((pi)/4+A)=(1+tanA)/(1-tanA)
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Show that tan (45^(@) - A) = (1 - tanA)/(1 + tanA)
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(tanA)/(1-cotA)+(cotA)/(1-tanA)=
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