Find tan theta if sin theta = 4/5 and theta terminates it    3/5

Q: (cose – sin0)² = 1 – 2sin@cos0 %3D

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Q: Sin

A: Given that: (Sin²30°+cos²30°+sin²45°+cos²45°)²

Q: sin e cos (cos a cosec 0) de (1-cos a). 2 ||

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Q: (arctan o tan)' = 1 – pi k E z°(k +1/2)pi When differentiating on the Real line is this true?

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Q: 1000pi*cos(pix/6)

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Q: Sketch 7 +4 sin 0 +3 cose

A: Let f(θ)=7+4sinθ+3cosθ .Rewrite the function into sine form only .…

Q: Find sec 0 if cos 0 ||

A: Our Aim is to find sec θ given that cos  θ=13

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

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Q: How does sin 15 ° = ((√2-(√3))/2

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Q: I co cos (In x) dr

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Q: If sin 0 + cose =p and sec 0 + cosece = q,show that q (,? – 1) = 2p

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Q: Show that V2 + V2 cos 2 and cos 16 and use it to find sin 16 Show that

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Q: tan⁡ 5π/6

A: Recall the below identity.

Q: Find cos 20 if sin 0 = cos 20

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Q: Show the solution for  (1 + cos A) (1 - cos A)

A: Explanation of the solution is given below..

Q: tan(C + A)tan(C – A)tan(B+ D) = tan(D – B)

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Q: Prove that cos 20/sin20=2cos20 |

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Q: 2 sin- If p = cos -1 q, show that 4p? – 4pt + q? = 1.

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Q: -4 sin 0 = Find cose jif 5 and 0 terminates in QIV.

A: Given By using the identity we get But terminates in fourth quadrant and so value of is…

Q: Is the equation 2 sin2 0 – cos 0 + 4 = 0 possible ?

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Q: If x + = 2 cose X then show that 1 = 2 cos 20 X* + X

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Q: Find 5 trig functions  of theta if sec thetab=13/5 and sin theta <0

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Fundamentals of Trigonometric Identities

Trigonometric Identities are the equalities that involve trigonometry functions and hold for all the values of variables given in the equation.