V/-8 = 4v
V= -32v
V+32v=0
33v=0
V=0
Correct the first way is 1to1, 1:1, 1 boy to 1 girl .
The answer would be the first one, 2s+6.
The answer is B. 5
6+2=8
3+5=8
Step-by-step explanation:
LHS= sin 3x/sin x - cos 3x/cosx
Taking LCM,
<u>=</u><u>sin3xcosx- cos3xsinx</u>
sinxcosx
<u>=</u><u>sin(3x-x)</u>
sinxcosx
= <u>2sin2x</u>
2sinxcosx
=<u> </u><u>2sin2x</u><u> </u>
sin2x
=2
= RHS.
Proved.
