Suppose sin(@) = -³/5 and sin(ø) = –³/17. with both angles are in the interval n, 3*/2]. What must be the exact value of cos(0+ )? %3D O no correct answer O 84/85 O 36/85 O 77/85 O 13/85

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A: Given:  Let I=∫0π cos6 θ dθ To Find: To evaluate the given integral.

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A: We have to compute the area bounded by fx=cosx+sinx on 0,π.

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

Q: for what value of x is cosx 1=5cosx is true

A: Solution: Consider the given equation: cos x .1 = 5 cos x Therefore, 5 cos x = cos x5 cos x - cos x…

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A:

Q: using your calculator, determine sin2 + cos3 – tan4.

A: Givensin2+cos3-tan4

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A:

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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: is it right to say cos (60o-30o) = cos60o .cos 30o+ sin60o.sin30o?

A: cos(A-B)=cosA.cosB+sinA.sinB