If = tan-(1) and 180° < 0< 360°, which of the fo equivalent to cos 0? %3D O 1//2 O None of these O v2 0 1 O -1//2

Q: Find 10. cos°0 do

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

Q: Show that sin-1 v + cos-1 v = π/2 .

A: Given: sin-1 v+cos-1 v=π2

Q: What is csca if sec a = -4/3 and tana < 0?

A: What is csca if seca=-43 and tana&lt;0?

Q: Find exact positive value of Cos ꆪ = 2/3

A:

Q: dy Find dif sin x + 2 cos 2y) = 1 dx

A:

Q: 4 cos 2x + 10 sin x – 7 = 0?

A:

Q: Show that os (2 tan~ r) COs

A: We have to prove that cos(2tan-1x)=1-x21+x2.

Q: Find the value of cos 1- + 2 sin 1/2

A: value=?

Q: Why is I cos 0 |never greater than 1 in the first place?

A:

Q: Find   cos(u/2)   if   sec u=7.519

A:

Q: 2 sin2x – 3 = 3 cos x and 90° < x < 270°

A: Hello , thanks for your question as it is not clear mentioned that it is Sin2 x or sin 2x So we are…

Q: if cos theta = x/2, then 1+that2 theta is equals to?

A:

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: Find S(sin20cose + cos30)d0

A:

Q: 1 Cos(2) COS is equal 2]

A:

Q: Solve the equation for exact solutions over the interval [0, 2n). sec²x - 2 = tan²x

A: Given :sec2x-2=tan2x