Says to verify the identity:
sinx+siny+sin(x-y)=4sin(x/2)cos(y/2)cos((x-y)/2)
Tried to put into sum formula sin(x-y) and sinx + siny, but stuck in the next step no idea what can be done next
Can anyone help or does someone have solution?
copper prawn
Says to verify the identity:
sinx+siny+sin(x-y)=4sin(x/2)cos(y/2)cos((x-y)/2)
Tried to put into sum formula sin(x-y) and sinx + siny, but stuck in the next step no idea what can be done next
Can anyone help or does someone have solution?
steel belfryBOT
copper prawn
use sum to product identity
I suggest you try , i will send solution soon
this is the identity to use
so first use this
step2 : write sin(x-y) as sin2[(x-y)/2]
so the complete ay
short stone
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