mZA 65⁰ 70° 75 80⁰ 85⁰ sin A 0.9063 0.9397 0.9659 0.9848 0.9962

Q: 1-sine de. cos²0

A:

Q: (43) (a) Express 3° in radians. (b) Express T in degrees.

A:

Q: If tan A = and tan B B = 1/1, calculate and simplify the following: tan (A - B) = [?]

A: SOLUTION-

Q: Find two exact values of θ in degrees (0° ≤ θ < 360°) for which cos θ = −√32.Do not use a…

A: Given information: cosθ=-32, 0≤θ≤360° Calculation: The cosine function is negative in second and…

Q: Find the remaining trigonometric functions of theta if sin theta = 1/2 and terminates it

A: Given: sinθ=12 we know that sinθ is positive in first and second quadrant if, θ is in first quadrant…

Q: Find sec- (7.9) (in radians). (Hint: Use cos-1)

A: To find:sec-17.9

Q: Find exact value of 2cos15° cos75°

A: We have to find the exact value of , 2cos15° cos75°

Q: Find the exact value of tan (2 cos-1

A: We can solve the problem by applying trigonometric ratio.

Q: For each of the angles listed in Problems 35-42, sketch the unit circle and the radius that makes…

A: The unit circle is a circle with the radius 1 unit. The center of the unit circle is considered as…

Q: how sinx derives to cosx

A:

Q: What is the result of cos j8? Round your answer to the nearest tenths.

A:

Q: Use a reference angle to find the exact value of cos 210 degree        -1/2

A: Let the given cosing angle be y - y = cos210Angle 210° lies in the third quadrant.So, we can take…

Q: 5. Simplify the expression cos² (18°) - sin² (18°) to a single trig function of an angle

A: The given expression is

Q: Suppose that a is in the first quadrant and that B = n+a. What is cos-(cos B)? COS

A: In this question we have to find cos-1cosβ