17) Find the sin(15°), cos(15º) and tan(15°). Use these formulas. Leave answers in radical format. sin(u + v) = sin(u)cos(v) ± cos(u)sin(v) cos(u + v) = cos(u)cos(v) -/+ sin(u)sin(v) tan(u) + tan (v) 1-/+ tan(u)tan (v) %3D sin (0) tan(u + v) = ; or tan(0) = %3D Cos (8)

Q: COS (+3 O cos x Ocos 2x O sin a Ocos z +x) + cos (-) is equivalent to:

A:

Q: 2² ²¹ ( 1²/²) = a. sin os-¹ (-1) = b. cos C. sin-¹ (-2)=

A:

Q: cos u= 4/5. Evaluate sin v

A: Explanation: Given that,                          We know that,                        For angle u,…

Q: What is the value of sec(x) if sin=24/25

A: Given,

Q: 2) Find the exact value of sin-¹ (sin 9T 8 .You must show all your work.

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Q: State the sum and difference formulas for the sine. sin (x + y) = sin (x) cos (y) + sin (y) cos(x)…

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Q: Simplify sin(π/3) ⋅ cos(π/6) ⋅ tan(π/4)

A:

Q: cos° (3x) sin (3x) dr

A: Given data:     The given integral expression is: .   Assume cos(3x)=t, and differentiate it both…

Q: rewrite cos(x+4pi/3) in terms of sin(x) and cos(x)

A:

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.