Use a sum or difference formula to find the exact value of the following. 3n sin cos 15 + cos sin 5 15

Q: 13π/12 as the sum of two angles and evaluate the sine of the angle using the angle sum

A: Explanation and solutions is given below....

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

A:

Q: Use an identity to find the exact value of cos(theta/2) given that cos(theta)=3/7 with 270 degrees

A:

Q: cos - I resulted in a negative answer. Why is it impossible for cos to be 12 negative?

A: Let's find.

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: Find the exact value of the expression cos 5π/12 cos π/12 + sin 5π/12 sin π/12. Do not use a…

A: Let the given equation be y - y = cos5π12cosπ12+sin5π12sinπ12Let ,A = 5π12 and B = π12Then,y =…

Q: Calculate the exact value of the expression using sum and differences. cos (15°) cos(75°) – sin(15°…

A:

Q: If cos(0 - π/2) 0.54, find sin(- 0)

A:

Q: Draw and find the exact value  of these expressions   csc(cos-1 square root of 3 over 2) cot(cos-1…

A: Part (a) given expression

Q: Use the sum or difference identities to simplify the expression to a single trig function or a…

A: We simplify it using trigonometric identities

Q: Which of the following is the simplified expression of 1- 1 sece sin²e cos²0 O tan²e O sec²9 cose?

A:

Q: Determine the exact value of cos 45° x tan 60° sin 30°

A: We know, cos(45∘) = 12 ,sin(30∘) = 12 , and  tan(60∘) = 3

Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.