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Grade: 12th pass

                        

Dear Sir, Please solve the trignometry maths..attached here with mentioned ..VIII, IX, X.

3 years ago

Answers : (1)

yathartha gupta
71 Points
							(viii)    by taking R.H.S.    Let suppose theta=x        sinx.sin(90-x)/2sin^2(90-x)-1       Sinx.cos/2(sin(90-x))^2-1        2/2[sinx.cosx/2cos^2x-1]        2sinx.cosx/2cos2x      Sin2x/2cos2x        1/2tan2x       1/2.tan(x+x)      1/2[tanx+tanx/1-tanx.tanx]      1/2[2tanx/1-tan^2x]        tanx/1-tan^2x                                       hence proved
						
3 years ago
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