`4sin^2theta=1` の場合、`theta` の値は `2npi+-pi/3,\ n in Z` b. `npi+-pi/3,\ n i

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Prove: cos^6 θ- sin^6 θ= cos2θ(1- 1/4 sin^2 2θ)

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Prove sin^4 A-cos^4 A=sin^2 A-cos^2 A=2sin^2 A-1=1-2cos^2 A CLASS-10 TRIGONOMETRY IMPORTANT PROBLEM

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Prove sin^4 A+cos^4 A=1-2sin^2 Acos^2 A

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Prove that : (sin^4 θ+cos^4 θ)/(1-2 sin^2θ.cs^2θ) = 1.

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Prove: Cos^6 θ+ sin^6 θ= 1/4(1+3cos^2 2θ)

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सिद्ध कीजिए- sin^(4)theta-cos^(4)theta=1-2cos^(2)theta. | CLASS 10 | त्रिकोणमितीय सर्वसमिकाएँ |...

Prove that : ( sin 4 theta + cos 4 theta )/ 1-2 sin square theta cos square theta = 1

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Class 11 Maths If A=(cos)^2 θ+(sin)^4 θ prove that 3/4≤A≤1 ,Trigonometry Functions

Prove that : (sin^4 θ - cos^4 θ +1) cosec^2 θ = 2...|| Class 10 ||

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