2 years ago

Prove this identify : 2 cos^2 (45°-A ) = 1 +sin 2 A

Mathematics

1 answer:

11Alexandr11 [23.1K]2 years ago

4 0

I wasn’t sure how to put this into words. I hope this makes sense. <3

You might be interested in

What is 17/16 in simplest form

Olin [163]

It can be written as 1.0625

3 0

3 years ago

What is the solution of log4(2x-6)=2

Flauer [41]

Answer: $x=11$

Step-by-step explanation:

Remembert that, by definition:

$log_b(x)=y$ → $b^y=x$

Then, you can rewrite $log_4(2x-6)=2$ in exponential form:

$4^2=2x-6$

Now you can solve for the variable "x":

Add 6 to both sides of the equation:

$4^2+6=2x-6+6$

$22=2x$

And finally you must divide both sides of the equation by 2, then:

$\frac{22}{2}=\frac{2x}{2}\\\\x=11$

3 0

3 years ago

Bill wants to rent a car. Rental company a charges $35 per day plus $.10 per mile driven. Rental company B charges $25 per day p

svp [43]

According to my calculations, after 200 miles, the prices will be equal.

5 0

3 years ago

Cindy put equal sized marbles into a bowl. Then, she shook the bowl until 3 marbles fell out. Is this a random sample of the mar

myrzilka [38]

Answer:

Yes

Step-by-step explanation:

I'm assuming this is right

6 0

3 years ago

Read 2 more answers

A road has a 16.7% grade.<br>Why might we want to warn drivers of a grade like this?

never [62]

The higher the percentage, the steeper the grade and the steeper the hill. This warning is issued so drivers are more careful (otherwise they would probably get into more accidents).

8 0

3 years ago

Prove this identify : 2 cos^2 (45°-A ) = 1 +sin 2 A​

Prove this identify : 2 cos^2 (45°-A ) = 1 +sin 2 A