<span>Sin(-x) = -sin x for all values of x, IT IS TRUE
Because sinx is an odd function</span>
Answer: 1200
Step-by-step explanation:

To simplify the fraction, divide the numerator / denominator ( cancel ) by the highest common factor of 25 and 30, that is 5
=
in simplest form
Answer:
f(x) * g(x) =(7x-9)(2x+1)
=14x^2+7x-18x-9
=14x^2-11x-9