Let a and 3 be first quadrant angles with cos(a) Find cos(a + B). = √5 10 and sin(3) √10 8

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

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Q: Use the information given below to find sin (a-B).

A: Given,tanα = 512 = PerpendicularBase                               α is in 3rd quadrantPerpendicular…

Q: Express cos°x as a function of multiple angles.

A: The function of multiple angles is given below,

Q: Express as a single sine function: 10 cos (100t - 9°) + 10 sin (100t + 19°)

A: Given the given function is 10 cos100t - 9° + 10 sin100t + 19° Apply formula cosa-b=cosa cosb + sina…

Q: 1. Draw the angle, mark reference angle, and find the exact value (for a and b) (a) sin(-210 (b)…

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Q: () V3 i) tan 3 c) sin- cos

A: (c) sin-1(12) = π6this is in quadrant 1

Q: sin? Cos dx 2

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Q: without using calculato find :   cos(225)sin(315) + 1/2sin(-270)tan(405)

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Q: 2 is a triangle in which Tan A = 3 and Sin B = V5 ut using Calculator find Cos (A+B)

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Q: 9. Write in the following in terms of its co-related angle: (a) sin 75° = (b) cos (3)-

A: We have to Determine the given expression in terms of its co-related angle.

Q: Suppose that a and ß are in the first quadrant, sin(a) = , and sin(B) = . What is sin(a + B)?

A: cos2α=1-sin2α sinα+β=sinαcosβ+cosαsinβ

Q: ( cos rdx = CO Select one: a. x sin2x +c 2 b. * sin2r 41 sin2r 41 C. sin21 C d. a +. 21

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Q: { 8. (sin@ + cos@)²

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Q: 2 * 10 → cOS =1- →0 = 160 18

A: Given: cosθ2 = 1 -2·1018 To find: The value of angle θ.

Q: Determine whether the function f(r) = 4 tan(r) cos(r) is even, odd, or neither. i) Even ii) Odd iii)…

A: Given function, f(x)=4tan(x)cos(x)

Q: 3 = and cos a=- 3 such that 5' 5 Given that sin 0 = both 0 and a are in the same quadrant, without…

A: We will solve the three parts b,c,d by using geometric identities and formulas by checking value in…