QUESTION 1 12 It is given that sin A=- and cos B 17 13 angle. Without using calculator, find the values of (a) csc² A (b) cos 2B (c) tan(A-B) where Ais an acute angle and B is an obtuse

Q: You will be using sin¹¹, cos^¹, tan^¹. Find the following angles: i. sin 0 = 0.7071, 0= ii. cos A =…

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Q: Find the exact value of expression sin 240°. Do not use a calculator.

A: Given: sin240∘ we know that  sin180∘+θ=-sinθ

Q: When we evaluate sin 2, how do we know whether to set the calculator todegree or radian mode?

A: Set the calculator to radian mode to evaluate sin 2.

Q: x/3  radians is equivalent to 60°. True   False

A: Given that x/3  radians is equivalent to 60°.

Q: Write cos ⁡ ( θ ) in terms of sin ⁡ ( θ ) if θ is an angle in quadrant II.

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Q: What does it mean when tan t<0. Which quadrant does that land in the unit circle?

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Q: How do you decide whether to use a positive or negative sign in the half-angle formula for sine and…

A: Solving the following problem

Q: Find tan -75° without using a calculator. [?]-V] |

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Q: when should you use radians and degrees

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Q: sin 8 = 1,0° < 0 < 90°; find tan 8.

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Q: »(플), 43. Evaluate the cube root of z when z = 32cis 3

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Q: Use a reference angle to find the exact value of tan 4π/3.

A: solution:- Use a reference angle to find the exact value of tan 4π/3.

Q: (2) If cos(0) = and sin(0) = which quadrant does the angle belong to? Explain your answer in at most…

A: Given; Cos(theta)=40/41,  Sin(theta)=-9/41

Q: What is the exact value of cos- (sin a) where a = 13T radians? 4

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