X= 121 12 Evaluating a Trigonometric Expression In Exercises 75-80, find the exact value of the trigonometric function v - (Both u and y are in given that sin u = and cos y = 25 Quadrant II.) 75. sin(u + v) 77. tan(z - v)

Q: 1) If Cos A= 4/5 Then Find the value of Sin 2A O 24/25 O ((24)/25 7/25 O (-7)/25

A: In the question we have to find the value of sin2A.

Q: 1-sine de. cos²0

A:

Q: V2 V2 The expression -sin A+ -cos A can be written in the form cos(A+0). Find a possible exact value…

A: Given expression -22sinA+22cosA. The objective is to write the expression in the form cos(A+θ).

Q: why is the inverse cos of -30/12 not possible? I understand how we get the other x values but this…

A: We know cosx≤1 for all real x.

Q: cos 2A = cos? A - -1 = 1 -

A: We have to fill in the blanks: cos 2A=cos2 A-_____=______-1=1-______ We know the identity, cos…

Q: How does one work out a question like sin(4pi/2) or sin(123pi)? What are the steps taken, and the…

A: The sign of trigonometric functions in different quadrants are: All trigonometric functions are…

Q: For part b can you please explain how sin(k) would be the same as cos(k)

A: sin(k) and cos(k) are same in sense of there range, since the range of these function is same.…

Q: If sinA=4/5 and cosB= -5/13, where A belongs to QI and B belongs to QIII, then find sin(A+B). How do…

A: Given that Where A in quadrant 1 and B in quadrant III

Q: sin'(cos(T/6))

A: We want to find the values of given trigonometric functions. We use values of trigonometric ratios…

Q: Rewrite the expression cos (0) without using any powers of sin or cos.

A: We have to rewrite the expression cos4( θ) without using the powers of sin or cos .

Q: Find the exact value of the expression cos 5π/12 cos π/12 + sin 5π/12 sin π/12. Do not use a…

A: Let the given equation be y - y = cos5π12cosπ12+sin5π12sinπ12Let ,A = 5π12 and B = π12Then,y =…

Q: The Equivalent expression of (cos 3A) / (sin A cos A) is ?

A:

Q: Evaluate cos 2 cos 7x without using a calculator. (Assume x>0.) |

A: given that cos( 2cos-1 7x) and we simply this here x>0 . Here i attached solution of this…

Q: (1+sin?)(1-sin?) + 5 = cos2? + 5

A: Since you have asked multiple question, we will solve the first question for you. If youwant any…

Q: All of the Pythagorean identities are related. Describe how to manipulate the equations to get from…

A: Pythagorean identities of trigonometric ratios are all derived from the fundamental identity:…

Q: If cos(0 - π/2) 0.54, find sin(- 0)

A:

Q: Find cos 2a if 4 sin a - COS a = 3. 2 sin a + COS a

A: −53​Explanation:Click shift solve then equals.

Q: 78. sin² 20 1 + cos 20 = 2 sin²0

A:

Q: 7. Simplify the following formula sin140° cos40° + cos140° sin 40°

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Q: 18. Suppose < 0 <n and sin 0 = Evaluate cos 0

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Q: How do you solve cos θ = cos77° / 2 ?

A: