If sin = о O O O COS 0= cos -V √√3 2 = 9 what are the possible values of Cos 0 and tan ? -, tan0 = cos 0 = 1, tan0 = √3 - √3 ½, tan 0 = -√√3 cos 0 = -1/, tan0 = -√3

Q: Prove cos - sine cos + sin sec 28-tan 20.

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Q: Verify the identity: (cos 4x - cos 2x)/(sin 2x - sin 4x) = tan 3x

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Q: (1+Sin O+COs02=a(+Sin0)+cose)

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Q: Find an algebraic formula for cos (tan-1 u + sin¬1 v), then use that formula to 1 compute cos…

A: given function ,  costan-1 u + sin-1 v  ..........................eq.(1) now we have to find an…

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A: cos2x -sin2x=2cos2x-1

Q: how 300/sin(120+Θ) become 300/cos(30+Θ)?

A: Topic:- trigonometry

Q: sin' t – cos' t Prove tan?t – 1 cos? t

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Q: Calculate the value of expression: sin- cos--2· cos- • tan 5 2

A: Explanation of the answer is as follows

Q: Establish the identity 2 2 cos - sin 0 2, 1 - tan 0 2 = cos 0.

A: To establish the identity

Q: Verify identity cos2 x - sin2 x = 1 - 2 sin2 x.

A: The given trigonometric equation (identity) is: cos2x-sin2x=1-2sin2 x To verify this, take the left…

Q: By equating the real parts of cos5θ + j sin5θ = (cosθ + j sinθ)5 Show that cos5θ = 16cos5θ -…

A: Given By equating the real parts of cos5θ + j sin5θ = (cosθ + j sinθ)5

Q: sin 61° = cos ; cos 17° = sin 0;

A: Given: sin61°=cosθ;cos17°=sinθ