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- Prove that 1+tan A tan((A)/(2))=tan A cot((A)/(2))-1=sec A
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- 1+tan A tan((A)/(2))=tan A cot((A)/(2))-1=sec A
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- (1+tan^2theta)/(1+cot^2theta)=((1-tantheta)/(1-cottheta))^2
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- cot A=(1)/(2)(cot((A)/(2))-tan((A)/(2)))
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- ((1+tan^2A)/(1+cot^2A))=((1-tanA)/(1-cotA))^2=tan^2A
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- 1+ tan A tan .(A)/(2)= tan A cot (A)/(2) -1 =sec A
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- सिद्ध कीजिए कि (1+tan^(2)A)/(1+cot^(2)A) = ((1-tan A)/(1- cot A))^(2) ...
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- Prove that (1+tan^(2)A)/(1+cot^(2)A)=((1-tan A)/(1-cot A))^(2)=tan^(2)...
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