Verify the identity: sin 4x = 2 sin 2x cos 2x<span>
We use a trigonometric identity as follows:
</span>sin(a+b)=sin(a)cos(b)+cos(a)(sin(b<span>)
</span>
We s<span>tart with
sin(4x)=sin(2x+2x)
</span><span>sin(2x+2x)=sin(2x)×cos(2x)+cos(2x)×sin(2x)
</span>Then, it will simplify to
<span><span>2sin(2x)cos(2x)
Hope this answers the question.</span></span>
Answer:
d
Step-by-step explanation:
Answer:
7(x-1)-5(x-1)= 22
7x-7-5x+5= 22
7x-5x-7+5 = 22
2x-2= 22
2x = 22+2
2x = 24
x = 24/2
x = 12
Step-by-step explanation:
Answer:
A: Domain: all real numbers
Range: all real numbers greater than or equal to -4
For the second page, h(-3) is 5.
Answer:
105.962
Step-by-step explanation: