Answer:
I believe the Answer is B
I'm really sorry if this is wrong.
Step-by-step explanation:
I tried my best :)
Answer: D
Step-by-step explanation: Hope this helps :)
Answer:
Cube root of 25
Step-by-step explanation:
Answer:
Step-by-step explanation:
hello :
sin(x+y)= sinxcosy+cosxsiny...(*)
sin(x-y)= sinxcosy-cosxsiny....(**)
add (*) and(**) : sin(x+y)+sin(x-y)= 2sinxcosy
1/2(sin(x+y)+sin(x-y)) = sinxcosy......true