5 13 Given sine and cose = 12 which of the following can be proven using a Pythagorean identity? 13'

Q: Divide both sides of the equation cos?x+sin? =1 by sin?: x to get a formula involving cot²x and csc…

A: We have to find ∫csc4dx Given cos2x+sin2x=1

Q: Verify each identity. 1) -sin² xsec² x = 1 - sec² x

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Q: Evaluate, using the tables if necessary. (sin 30•)2 . cos 180° + tan 0 - cot (-45). 3/4 5/4

A: To find: sin 30°2·cos 180° + tan 0° - cot-45°

Q: 1. Prove the following identity: cos³x-sin³x = 1+ sinx cosSX cosx-sinx

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Q: Simplify the expression. Do not evaluate. cos?(5x) – sin?(5x)

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Q: Convert this identity to one using sine term(s) only. 1 - 2 cos2r = 2sin²r - 1 -1 - sin²r 1 -…

A: This question is based on conversion of Cos2r = 1 - Sin2r

Q: 17) Establish the identity. 1+ tan?(-0) = sec² 0 %3D

A: Properties of trigonometry used :- 1.) tanx = sinx / cosx  2.) sin2x + cos2x = 1  3.) cos (-x) = cos…

Q: 3 and sin 0 <0, determine the remaining five trigonometric 4 10. Given cos0 = values.

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Q: 3π Use a half-angle formula to find the exact value of cos 8 COS 3π 8 0 010 X Ś

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Q: 78. sin² 20 1 + cos 20 = 2 sin²0

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Q: sin k 1-cos 2k 24. 9. 36sin k

A: