Which of the following is not an identity? o a. cos2x cscx-cscx = -sinx o b. csczx+ sec2x = 1 o c. cos2x-sin2x = 1- 2 sin2x o d. sinx(cotx + tanx) = secx

sorry can't

step-by-step explanation:

i googled though and something came up but it was in science langueage not common english sooo

answer: solve 5\cdot 2^x=2405⋅2  

x

=2405, dot, 2, start superscript, x, end superscript, equals, 240.

solution

to solve for xxx, we must first isolate the exponential part. to do this, divide both sides by 555 as shown below. we do not multiply the 555 and the 222 as this goes against the order of operations!

\begin{aligned} 5\cdot 2^x& =240 2^x& =48 \\ \end{aligned}  

5⋅2  

x

2  

x

​    

=240

=48

​

step-by-step explanation:

sina-sinb

cosb+cosa

tana-tanb

cos0+cos x pi/3

20tan

step-by-step explanation: