Select the correct answer.
What is the expanded equivalent of sin(a + b)?
A.
sin a cos b - cos a sin b
B.
sin a cos b + cos a sin b
C.
cos a cos b- sin a sin
D.
cos a cos b + sin a sin b

Triangle knm is what is true about the sides of knm

Match each whole number with a rational, exponential expression 3 square root 27^2find the domain and range of the exponential function h(x)=125^x. explain your findings. as x decreases does h increase or decrease? explain. as x increases does h increase or decrease? explain.

This is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 5 terms.