If cos A=1/2 with A in QIVfind the following sec A/2 2. If sin A=5/13 with A in QII find the following cosA/2 3. If sin A=3/5 A in QII find the following Cos A/2

Q: Find the value of x in each of the following )tan 3x sin 45 .cos 45 .+sin 30

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Q: Let sinA=-4/5 with A in QIII and cosB=-3/5 with B in QII. Anwer Exactly. Find sin(A-B), cos(A-B),…

A: Given,

Q: b. What is the range of y = sin-12x? %3D

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Q: If cos(0) 7. and 0 is in the 4th quadrant, find sin(0) 8. sin(A)

A: Since, cos θ=78and θ is in the fourth quadrant.Our Aim is to find sin θ=?

Q: Find Sin, Cos, Tan 12 A 8.

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Q: If cos a + cos B= a and sina + sin B= b, then show that 2 sin 2a + sin 2B = 2ab 1 a2 + b2

A: given: cosα+cosβ=asinα+sinβ=b we have to show that  sin2α+sin2β=2ab1-2a2+b2 R.H.S: 2ab1-2a2+b2…

Q: a) Evaluate the following: 1 - 2 - L {sin3t cos3t} , 3 - I {sinht sint}

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Q: evaluate exactly sin(cos-1(2/3))

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Q: 9tx 81-18

A: Since you have asked multiple questions in a single request so we will be answering only first…

Q: Let cos A = -5/13 with A in QIII and sin B = 3/5 with B in QI. Find the exact answer for cos (A+B)…

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Q: Find cos 0 and csc 0 3 if sin 0 = -- and cos 0 < 0

A: given  sinθ=-34we know sin2θ+cos2θ=1and sinθ=1cscθ

Q: What is sin(17) equal to the cos of?

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