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tanA/1-cotA+cotA/1-tanA=(1+secA.cosecA)prove

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tanA/1-cotA+cotA/1-tanA=(1+secA.cosecA)prove

Posted by Sachin Shukla 7 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Siddharth Sharma 7 years, 6 months ago

tanA/(1-1/tanA)+cotA(1-tanA) =-tansq.A/(1-tanA)+1/tanA(1-tanA) =1-tancubeA/tanA(1-tanA) =(1-tanA)(1+tansq.A+tanA)/ tanA(1-tanA) =1+tansq.A+tanA/ tanA =cotA+tanA+1 =cosA/sinA+sinA/cosA+1 =(cossq.A+sinsq.A+cosAsinA)/cosAsinA =(1+sinAcosA)/sinAcosA =1+secAcosecA Proved

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CBSE > Class 10 > Mathematics