Answer:
Step-by-step explanation:
X/7=3/2 multiply by : 5
x = 21/2
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.
D
An acute angle is less than 90 degrees
<span>5 nickels , 2 quarters, and 1 pennies = 8 coins.</span>
<span> he received 2 quarters</span>
It is 109
Hope it helps !!