Use the sum-to-product identities to rewrite the following expression as a product. cos(50°)+cos(105°)

Q: 6. Use the sum and difference identities to simplify the expression. '5T COS 12

A:

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 sin B.

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

Q: Calculate cos (π / 2 + 2 i) and express in the form a + b i

A: We have to express cos(π / 2 + 2 i) in the form of a+ib.

Q: Use the sum-to-product formulas to rewrite the sum or difference as a product. cos x + cos 2x

A: Here we want to write the given sum as a product using sum to product formula.

Q: Cos 60

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

Q: 52 48

A: The solution is: