Perform the following multiplication and write the product in trigonometric form. Express your result in the exact form, if possible; otherwise, use a decimal approximation rounded to the nearest hundredth.. [9(cos (45) + isin(45")|[5(cos(240") + isin(240"))]

Q: Write the expression cos(10x) - cos(12x) as a product of sines and/or cosines. NOTE: Enter the…

A: To write the expression cos10x-cos12x as a product of sines and/or cosines.

Q: find the product. leave the result in trigonometric form.…

A:

Q: Evaluate 3 .9 sin (15x) cos (15x) dx.

A:

Q: Calculate fa₁. (1 + tan² a) da

A:

Q: Find sin B.

A: We have to find sinB from the given figure.

Q: ind cose, given that sin0 = -5/13 and 0 s in quadrant III. %3D elect one: a. -12/13 b. -5/12 C. 12/5…

A: Answer is- Option a is correct Explanation is given below...

Q: Write each function in terms of its cofunctipn. A. Csc(pi/4) B. Tan(pi/2) C. Sec35 D. Sin74 E.…

A: Write each function in terms of its co-function. (A)   Cscπ4       ⇒Cscπ4=Secπ2-π4    ,…

Q: Write the following expression as a single trig function (do not evaluate it), simplifying as much…

A: We know that  cos(A+B) = cosA cosB - sinA sinB  Here, A = 123° B = 84°

Q: Find the identical expression for the following. 1-cos x 1+cosx

A: Find the identical expression

Q: Simplify the following showing steps:   Cos4(theta)-Sin4(theta)

A: Given,

Q: Cos 60

A: See attached file for a step by step explanation to find the trigonometric value.

Q: -11m. ii. cos-1(cos()) CO 6.

A: Given problem:- cos-1(cos(11π6))=?