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tan(45^(@)-A)=(1-tan A)/(1+tan A)...

tan(45^(@)-A)=(1-tan A)/(1+tan A)

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Show that tan (45^(@) - A) = (1 - tanA)/(1 + tanA)

Prove that : tan (45^@+A)= (1+tanA)/(1-tanA) .

Prove that: i) tan(45^(@)-A/2) = (1-sinA)/(cosA) ii) tan(45^(@)+A/2)= (cosA)/(1-sinA)

Prove: tan (45 ^(@) - theta ) =(1 - tan theta)/( 1 + tan theta)

Prove that tan(A-B)=(tan A-tan B)/(1+tan A*tan B) , if A=60° & B=45°.

Prove: tan (45^(@)+ theta ) = (1 + tan theta)/( 1- tan theta )

tan(45^(@)+A)tan(45^(@)-A)=1

If A+B=45^(@) , then (1+ tan A)(1+ tan B) =__________

If A+B=45^(@) , then (1+ tan A)(1+ tan B) =__________