Step-by-step explanation:
½ [cos(a − b) − cos(a + b)]
Using sum and difference formulas:
½ [cos a cos b + sin a sin b − (cos a cos b − sin a sin b)]
Distribute the negative:
½ (cos a cos b + sin a sin b − cos a cos b + sin a sin b)
Combine like terms:
½ (2 sin a sin b)
Simplify:
sin a sin b
48/144=1/3
5/15=1/3.
As a result, 48/144 does equal 5/15. Hope it help!
Answer:
C is the answer
Step-by-step explanation:
35+1=36
35-------------36
(n / 10) + 15
The quotient is the result of division between two numbers
