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If (xcos e c^2 30^0sec^2 45^0)/(8cos^2 4...

If `(xcos e c^2 30^0sec^2 45^0)/(8cos^2 45^0sin^2 60^0)=tan^2 60^0-tan^2 30^0,` than `x=` (a)`1` (b) -1 (c) 2 (d) 0

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RD SHARMA-TRIGONOMETRIC RATIOS-All Questions
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  3. If (xcos e c^2 30^0sec^2 45^0)/(8cos^2 45^0sin^2 60^0)=tan^2 60^0-tan^...

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  4. The value of (cos(90^0-theta)sec(90^0-theta)tantheta)/(cos e c(90^0-t...

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  19. Prove that: (cos30^0+sin60^0)/(1+cos60^0+sin30^0)=(sqrt(3))/2

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