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Standard Values of Trigonometric Ratios

If sin^2A + s...

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If sin^2A + sin^4 = 1 then the value of tan^2A - tan^4A is equal to

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Q. If tan2A×tan4A=1 then find the value of tan3A

Q. sec⁴ A − sec² A is equal to

(a) tan² A − tan⁴ A
(b) tan⁴ A − tan² A
(c) tan⁴ A + tan² A
(d) tan² A + tan⁴ A

{t a n}^{2} A - s i n^{2} A = {sin}^{4} A {sec}^{2} A

A = 30^{0}

cos 2 A = {cos}^{2} A - {sin}^{2} A = \frac{1 - {tan}^{2} A}{1 + {tan}^{2} A}

If true enter 1 else 0

30^{\circ}

cos 2 A = \frac{1 - {tan}^{2} A}{1 + {tan}^{2} A} = {cos}^{2} A - {sin}^{2} A

State true or false.

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