write the value of (1+tan2theta) (1+sin theta) (1_ sin theta) .
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Answered by
1
(1+tan2)(1+sin)(1-sin)=(sec2)(1-sin2)
=(sec2)(cos2)=(1/cos2)(cos2)=1
=(sec2)(cos2)=(1/cos2)(cos2)=1
Answered by
3
= (1+tan^2A)(1+sinA)(1-sinA)
= (1+tan^2A)(1-sin^2A) {(a+b)(a-b) = a^2-b^2}
= (sec^2A)(cos^2A)
= (1/cos^2A)(cos^2A)
= 1
= (1+tan^2A)(1-sin^2A) {(a+b)(a-b) = a^2-b^2}
= (sec^2A)(cos^2A)
= (1/cos^2A)(cos^2A)
= 1
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