answer this...............
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cos theta = 1/sec theta
= 1/root (1+tan^2 theta)
= 1/root (1+1/cot^2 theta)
= 1/root(cot^2theta+1)/cot^2theta
= (cot theta)/ root(1+cot^2theta).
= 1/root (1+tan^2 theta)
= 1/root (1+1/cot^2 theta)
= 1/root(cot^2theta+1)/cot^2theta
= (cot theta)/ root(1+cot^2theta).
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i think it is ur ans. .....yaa....
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sanvi57:
I did it how can I send a pic
ok
no
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