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Q: A 5 4 B 3 C

A: Given :

Q: 2. Use the labels on the triangle to determine the following: а. The ratio for sine of a a b. The…

A:

Q: alculate. 4 X sin 35° = b) 16 s 46° COS

A: We have to find the values of 4sin35° and 16/ cos46°

Q: II. Use the reference angle to evaluate the following trigonometric functions: a) sin 315° b) cot(-…

A: a). b).

Q: a) For a + 90°, prove the identity sec a = b) Use your calculator to determine sec 82°. cos a.

A: here we have to prove ,  a) secα=1cosα for α≠90∘ b) sec82∘=?

Q: 5. Fill in the blank using cofunctions of complementary angles: a. cos(36°)= sin( ) b. cos = sin( )…

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Q: find the angle Sin A = 0.5

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Q: a. Find sin(270). b. What trig function and angle is equivalent to sin(2701?

A: Solution : we have to find out a. sin(270°) b. Trigonometric function and angle is equivalent to…

Q: a) For a + 0°, prove the identity csc a b) Use your calculator to determine csc 12.3°. sin a

A: (a) We have to prove that cscα=1sinα. It is given that α≠0°. Let α=60° Then, csc60°=23

Q: Let a and B be first quadrant angles with cos(a) and sin(B) = 8 Find cos(a – B).

A:

Q: find: a) in what quadrant does θ lie?, b) what is the value of cos θ? ; and c) find the value of tan…

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Q: c) Find the value of: sin )

A: To find the value of sin23π8.

Q: A right triangle has side lengths a, b, and c as shown below. Use these lengths to find sinx, cosx,…

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Q: Use formulas for the sum or difference of angles to establish the following identity:  Cos(theta+…

A: Prove the identity