Suppose sin theta=x/9 and the angle theta is in the 1st quadrant. write algebraic expressions for cos(theta) and tan(theta) in terms of x.
cos(theta)=
tan(theta)=

2 and 1.

step-by-step explanation:

plug in each answer. 0 doesn't work, 1 does. so does 2. 4 doesn't:

0 = 1 is not true.

2 = 2 is true.

4 = 4 is true.

8 = 16 is not true.

hope this !

you can first factor out the n to get n(1+5). we know that 1+5 is 6, so we just have 6n.