SAT Subject Test Mathematics Level 1

LEVEL 1 IDENTITIES

On the Level 1 test, you may come across questions like Example 2.

Example 2

Start by multiplying to get rid of the parentheses and see where that will lead
you:

(2sinx)(3sinx)+(6cosx)(cosx)=   6sin^2 x    +6cos^2 x

MATH 1 STRATEGY: SET YOUR CALCULATOR TO DEGREE MODE AND KEEP

IT THERE

All angle   measures    on  the Level   1   test    are in  degrees,    so  make    sure

your    calculator  is  in  degree  mode.

1. (2sinx)(3sinx)+(6cosx)(cosx)=

(A) 1

(B) 6

(C) 12

(D) 5   sin x   +   7   cos x

(E) 6   sin x   +   6   cos x