How to prove that sinA+sin3A/cosA+cos3A = tan2A

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How to prove 0:03:43

How to prove that sinA+sin3A/cosA+cos3A = tan2A

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XI Trigonometric Functions Prove that sinA +sin3A +sin5A +sin7A cosA +cos3A +cos5A +cos7A tan4A

Prove that: (sinA 0:07:14

Prove that: (sinA + sin3A + sin5A + sin7A)/ (cosA + cos3A + cos5A + cos7A) = tan4A

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how to solve proven question of 11 class trigonometry sinA+sin3A/cosA-cos3A=CotA

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Prove that:`(sinA+sin3A+sin5A)/(cos A+cos3A+cos5A)=tan3A` 0:02:42

Prove that:`(sinA+sin3A+sin5A)/(cos A+cos3A+cos5A)=tan3A`

8. (sin3A+sinA)sinA+(cos3A-cosA)cosA=0 0:02:13

8. (sin3A+sinA)sinA+(cos3A-cosA)cosA=0

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Show that Cos 3A + Sin 3A / Cos A — Sin A = 1 + 2 Sin 2A @EAG

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Prove that (Sin3A/SinA) + (Cos3A/CosA) = 4Cos2A

(SinA+Sin3A+Sin5A+Sin7A)/(CosA+Cos3A+Cos5A+Cos7A) = Tan4A 0:09:01

(SinA+Sin3A+Sin5A+Sin7A)/(CosA+Cos3A+Cos5A+Cos7A) = Tan4A

Trigonometry: Prove that 0:03:05

Trigonometry: Prove that (sinA+sin3A)/(cosA+cos3A)=tan2A.

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Transformation of trigonometric formulae: Prove that:- (SinA.Sin2A+Sin3A.Sin6A)/(SinA.Cis2A+Sin3A.Co

Prove that: (cos7A 0:09:38

Prove that: (cos7A + cos3A - cos5A - cosA)/(sin7A - sin3A - sin5A + sinA) = cot2A

(cos7A+cos3A-cos5A-cosA)\(sin7A-sin3A-sin5A+sinA)=cot2A 0:01:52

(cos7A+cos3A-cos5A-cosA)\(sin7A-sin3A-sin5A+sinA)=cot2A

`(sin A +sin 0:04:29

`(sin A +sin 3A +sin 5A +sin 7A)/(cos A +cos 3A + cos 5A +cos 7A) =tan 4A`

Proof of cos3A 0:01:52

Proof of cos3A

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Prove that : `(sin3A+sin A)sin A+(cos3A-cos A)cos A=0`

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Prove that: `(sin A+sin3A)/(cos A-cos3A)=cotA`

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Prove that (cos³A + sin³A)/(cosA + sinA) + (cos³A - sin³A)/(cosA - sinA) = 2

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6. XI - Trigonometry Question by Vishal Sir Proof (SinA+Sin3A)/(CosA+Cos3A)=tan2A

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#Trigonometry all formulas

` (sin A+ 0:02:41

` (sin A+ sin 3A +sin 5 A+ sin 7A)/ ( cos A + cos 3A +cos 5A+ cos 7A)=tan 4A`

Prove the following 0:02:03

Prove the following identity: `(sin^3A+cos^3A)/(sinA+cosA)+(sin^3A-cos^3A)/(sinA-cosA)=2`