Find cos(a - B) exactly, given cos a and sin B = where o terminates in quadrant IV and B terminates in quadrant IV. Give your final result in exact, simplified form.\fIf csc(0) and 0 is in the 4th quadrant, find the follwoing: Give exact values. No decimals allowed! If the value doesn't exist, type DNE. cos(8) = sin(0) = sec(0) = tan(0) = cot(0) =Find sin(a - B) exactly, given sin a and sin B where a terminates in quadrant II and B terminates in quadrant I. Be sure to reduce your final result completely.20 If csc(z ) (in Quadrant-1), find 11 sin(2c) (Please enter answer accurate to 4 decimal places.)sin (-360 + t) 1 1 - cos(180 - (simplify the trig functions so that their angles match) (apply a trig identity) (factor where possible, but do not simplify the result) (simplify the fraction from the previous step) (finish simplifying)