(a) Use Addition formula to find the exact value of cos (a + B), (a in quadrant III) 3 if tan a = - (ß in quadrant II). 3 and csc B -

Q: cos 2.

A: Using the trigonometric formula,  cos2θ=2cos2θ-1⇒cos2θ+1=2cos2θ⇒cos2θ+12=cos2θ⇒cos2θ=cos2θ+12 Taking…

Q: epresent 3 sin x + 6 cos x in a form A sin(x + p), use radians for p.

A:

Q: now to get cos-1 value?

A:

Q: Plot the point(s) where cos : 1 2

A: We need to plot the points in the given figure where cosθ=12

Q: Suppose A₁, A2, ..., A30 are thirty sets each having 5 elements and B₁, B₂, ..., B₁ are n sets each…

A: Given that A1, A2, . . ., A30 are thirty sets each having 5 elements and B1, B2, . . ., Bn  are 'n'…

Q: Find csc-1(4.3) (in radians).  (Hint: Use sin-1)

A:

Q: Determine? cos 3x.dx

A: Given integral ∫cos(3x) dx, solve using the properties of indefinite integrals ∫cos(ax)dx=…

Q: If sinA=-2/3, pi<=A<=3pi/2, and cosB=3/7, 3pi/2<=B<=2pi, determine the exact value of sec(A+B).…

A:

Q: 2. a. arctan(-1) b. tanV3 C. tan-

A: a)tan-1(-1)=-π4b)tan-1(3)=π3

Q: simplify tan(a), if cos(a)= 4/7

A:

Q: 3.

A:

Q: 9tx 81-18

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