Use a sum-to-product identity to rewrite the expression. sin 3a+ sin 6a sin 3a + sin 6a = (Use integers or fractions for any numbers in the expression.)

Q: Sin13 T

A:

Q: El|CD. Find the value of x and AC.

A: We apply triangle proportionality theorem when a line parallel to one side of the triangle…

Q: Multiply the numerator and the denominator of the fraction by the cojugate of the denominator, and…

A: Given function is cosx/(1-sinx) Multiply Numerator and denominator with (1+sinx). Then…

Q: Give the exact answer. To enter the square root of a number, type "sqrt(a)". For example, type…

A: Use summation formula of sine

Q: Kindly elaborate on each step.  Especially: How does (sintheta-1)2 become 1-sintheta?

A: We have to prove  given trigonometry equation

Q: Write 5 sinx – 12cosx in the form ksin(x + a).

A: Given expression is: 5 sin x-12 cos x ............................ (1) We have to write the above…

Q: Evaluate the expression for 2=4 -7₁ and w= 7+3₁ Simplify completly Z+w =

A:

Q: cos(920)

A: use trigonometric identity

Q: Sin 120

A: Let's find.

Q: St sinx dx

A: To evaluate the integral ∫sin x dx.

Q: Multiply and simplify. (8+√√3)(5+ √√2)

A: We have to multiply and simplify the given expression,8+35+2

Q: Simplify tan ¹(− ª) to a single trig function using the sum or difference of angles identity. 2

A:

Q: simplify-cos01+cose 1+cose 4cof 1 cose

A: Given,

Q: Evaluate (2 + i) (-4+ 2i) O 10/180° O 102- 90° -10z O 10/90°

A: We have to multipling the given vector.

Q: Perform the Multiplication (sinx+cosx)^2

A: We can just perform the multiplication and trignometrical property.