Find the exact value of cos- 12

Q: - Find the exact value of tan cos 8.

A: tancos-1-78

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

Q: prove the Cos0=(A.B/AB).

A:

Q: cos z16 x17

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Q: Evaluate cos(5)

A: Given trignometric expression cos( 5π6 )

Q: Find cos 2a, if cosa =12/13and 3pi/2 <a<2

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Q: 82 18 Riv 80

A: For a right triangle we know, cos(θ)=basehypotenuse

Q: 23 Select the correct answer. What is the exact value of cos 112.5 ? 2 V2 O B. V2+2 C. V2 + v2 4 O…

A: To find:-  Exact value of cos(112.5°)

Q: What is the correct difference formula for cos(35) using 15 and 20

A: We have to use the different formulas to evaluate cos35 using 15 and 20.

Q: Find the exact value of cos 5p 12

A: We have to find exact value of the trigonometric expression: cos 5π12 Rewriting the given…

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: Find cos (5) exactly. 12

A: To find it we will use formula Cos(x/2) = √[{1+cos(x)}/2].