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Naily [24]
3 years ago
7

I want to prove that (2tanx)/(sec^2x)=sin2x.

Mathematics
1 answer:
4vir4ik [10]3 years ago
5 0

Answer:

Step-by-step explanation:

LHS = \frac{2 tan x}{Sec^{2} x}\\\\= 2tan x * \frac{1}{Sec^{2}x}\\\\= 2*\frac{Sinx }{Cos x}*Cos^{2}x\\\\= 2Sin x *Cos x\\= Sin 2x

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The current value of a new car is $18,000. The car will depreciate 15% per year over the next 5 years. Which exponential equatio
dedylja [7]

Answer:

f(x) = 18,000 • 0.85^x

Step-by-step explanation:

4 0
2 years ago
So this has to do with permutations and honestly I need an explanation on how I can figure these out.
AnnZ [28]
Well, the answer quite simple ....there are 4! ways to arrange these numbers...and as 4! = 4*3*2*1 = 24

hence 24 is the correct answer....


u can also remember it by theorem of multiplication as.....in first place (I.e. first code can be any no. out of 4,5,2&7 ....so 4*.....

as first place is acquired by a certain no. that leaves three no. to fill third place and when third place I'd occupied it leaves 2 numbers to fill second place and lastly only one no. to fill the last place .....so it's result will be like 4*3*2*1.



I know this is pretty much confusing ....but still I tried my best....

if anything troubles u here feel free to ask me
6 0
3 years ago
HELP FOR 20 pointsss!!!
monitta

Answer:

Option 1. Hope this helps! :).

Sincerely; Victoria

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
2x2x7x13<br> Write the number whose prime factorization is given
kramer

Answer:

364

Step-by-step explanation:

2x2x7x13

The prime factorization is just the factors of a number.

To find the number, multiply the numbers together

2*2 = 4

4*7 = 28

28*13 = 364

3 0
2 years ago
Read 2 more answers
I'm not really 100% sure on how to do this??
Cloud [144]
XPY is the circumference minus XY

the angle of arc XY is 90 degrees

a full revolution of a circle is 360 degrees

the distance XY is 1/4 of the circumference of the circle

the circumference of a circle is C=2 pi r

r is 10m

the circumference is 20 pi

1/4 of 20 is 5

the distance of arc XY is 5 pi

20pi - 5 pi = 15 pi
7 0
3 years ago
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