I hope this helps you
-cos²x= sin²x-1
4.sinx = sin²x-1+4
sin²x-4.sinx +3=0
(sinx-3)(sinx-1)=0
sinx≠3
sinx =1
SİN90=1
For this case we have that by definition, the volume of a sphere is given by:

Where:
r: It is the radius of the sphere
According to the statement we have to:

So the volume is:

Rounding we have that the volume of the sphere is: 
Answer:
Option B
Answer:
The correct option is B.
Step-by-step explanation:
A function is called an exponential function if it has common ratio.
A function is called an linear function if it has common difference.
In option A.



Since the given table has different ratio, therefore it is not an exponential function. Option A is incorrect.
In option B.



Since the given table has common ratio, therefore it is an exponential function. Option B is correct.
In option C.



Since the given table has different ratio, therefore it is not an exponential function. Option C is incorrect.
In option D.



Since the given table has different ratio, therefore it is not an exponential function. Option D is incorrect.
To find the area of the curve subject to these constraints, we must take the integral of y = x ^ (1/2) + 2 from x=1 to x=4
Take the antiderivative: Remember that this what the original function would be if our derivative was x^(1/2) + 2
antiderivative (x ^(1/2) + 2) = (2/3) x^(3/2) + 2x
* To check that this is correct, take the derivative of our anti-derivative and make sure it equals x^(1/2) + 2
To find integral from 1 to 4:
Find anti-derivative at x=4, and subtract from the anti-derivative at x=1
2/3 * 4 ^ (3/2) + 2(4) - (2/3) *1 - 2*1
2/3 (8) + 8 - 2/3 - 2 Collect like terms
2/3 (7) + 6 Express 6 in terms of 2/3
2/3 (7) + 2/3 (9)
2/3 (16) = 32/3 = 10 2/3 Answer is B
2x^2=2
x^2=1
x=+ - 1
now u can make graph