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Grade 10Trigonometry

prove the following : 1) sin0(1+tan0)+cos0(1+cot0)=sec0+cosec0. please give me some tips amd suggestions so that i can prove tough problems and please say how to practice trigonomety and when ?

kaushik kashyap

12 Years agoGrade 10

2 Answers

Jitender Singh

12 Years ago

Ans:

$sin\theta (1+tan\theta ) + cos\theta (1+cot\theta ) = sec\theta +cosec\theta$

$sin\theta (1+tan\theta ) + cos\theta (1+cot\theta ) = sin\theta (1+tan\theta ) + \frac{cos^{2}\theta}{sin\theta } (1+tan\theta )$ $(1+tan\theta )(\frac{cos^{2}\theta +sin^{2}\theta }{sin\theta }) = \frac{1+tan\theta }{sin\theta } = sec\theta+cosec\theta$

Thanks & Regards

Jitender Singh

IIT Delhi

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Crappy

7 Years ago

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