2 years ago

Provethat:cos^3A Cos3A + sin^3A.sin 3A=cos^3 2A

Mathematics

1 answer:

aalyn [17]2 years ago

3 0

Answer:

You might be interested in

What is the solution of y = -2x + 7 and y = 3x - 8

ser-zykov [4K]

bro 1234567890987654321 dude

8 0

2 years ago

You had $50. You spent 10% of the money on clothes, 20% on games, and the rest on books. How much was spent inborn books?

Sergio [31]

70% on books which is $35. So the answer is 35 .

5 0

3 years ago

RES Find (fºg)(1) Ax) = x2 - 1 g(x)= v a 0 c. 4. b. d. 18 Help pls

slava [35]

Answer:

Step-by-step explanation:

So we have the two functions:

$f(x)=x^2-1\\g(x)=\sqrt x$

And we want to find:

$(f\circ g)(1)$

This is the same as:

$f(g(1))$

So, to find the answer, find g(1) first:

$g(x)=\sqrt x\\g(1)=\sqrt1\\g(1)=1$

Now, substitute this value for g(1):

$f(g(1))\\=f(1)$

And plug this into f(x):

$f(x)=x^2-1\\f(1)=(1)^2-1\\f(1)=1-1=0$

Therefore:

$f(1)=f(g(1))=(f\circ g)(1)=0$

Our answer is A

3 0

3 years ago

Read 2 more answers

The line x - y = 5 passes through (-5, 0) (0, 5) (0, -5)

neonofarm [45]

The line x - y = 5 passes through the point (0, -5)

3 0

2 years ago

Read 2 more answers

Why is it difficult to find fossilized plants and animals in the same place

alexandr1967 [171]

Answer: because the conditions to generate a fossil for an animal is very different from the conditions required for a plant.

Step-by-step explanation:

it is D

3 0

2 years ago

Read 2 more answers

Provethat:cos^3A Cos3A + sin^3A.sin 3A=cos^3 2A​

Provethat:cos^3A Cos3A + sin^3A.sin 3A=cos^3 2A