9/100, let me know if this helps.
The question doesn’t make much sense. Do you mean x=50-12? If so, x=38
-40) No
0) No
-5) No
13) Yes
21)Yes
Sin x is possitive in two quadrants :
quadrant I and quadrant II
in quadrant I, cos x is positive
in quadrant II , cos x is negative
so i think the answer is : quadrant II
hope this helps
Formula for geometric sequence is aₓ = arⁿ⁻1
a₅=4(3)⁵⁻¹
a₅=4(3)⁴
a₅=4(81)
a₅=324
