28. Given that sin θ = -2/3 and tan is greater than 0, find cos θ

If tan^2 theta=1-e^2 prove that sec theta + tan^3 theta cosec theta= (2-e^2)^(3/2) | 10 | INTROD...

`2tan^2x+sec^2x=2` for `0 ltx^2 ltpi`

If ` sin theta = cos theta` ,then the value of `2 tan^(2) theta + sin^(2) theta -1` is equal to

Prove the trig identity: 1+tan^2 = sec^2

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If `y=sin^2 theta+cosec^2 theta, theta!=0,` then (A) `y=0` (B) `yle2` (C) `yge-2` (D) `yge2`

Tan square theta = 1-a square. Prove that sec theta + tan cube theta cosec theta = (2-a square)^3/2

Find the solutions to a trig equation between 0 and 2pi

Show that tan^4 theta + tan^2 theta = sec^4 theta - sec^2 theta.. most important questions class 10

21. Prove that tan2 θ + cot2 θ + 2 = sec2 θ cosec2 θ

If ` sec theta +tan theta =2, ` determine the value of ` (sec theta- tan theta)`

If tan^2 theta = 1 - a^2, prove that sec theta + tan^3 theta cosec theta = (2-a^2)^3/2

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If √3 sin⁡theta-cos⁡theta=0 and 0 theta 900, find the value of theta.

Prove that : √{sec^2(θ) + cosec^2(θ)} = tanθ + cotθ ...|| Class 10 ||

If `y=2 sin^(2) tan theta` then `(dy)/(d theta)` will be-

Show that the equation `sec^2 theta=(4xy)/(x+y)^2` is only possible when x=y

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