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3 years ago

Proof sin^3xcos^4x=sinx(cos^4x-cos^6x)

1 answer:

8 0

Sin³(x)cos⁴(x) = sin(x)[cos⁴(x) - cos⁶(x)]
sin(x) sin(x)
sin²(x)cos⁴(x) = cos⁴(x) - cos⁶(x)
sin²(x)cos⁴(x) = cos⁴(x)[1] - cos⁴(x)[cos²(x)]
sin²(x)cos⁴(x) = cos⁴(x)[1 - cos²(x)}
cos⁴(x) cos⁴(x)
sin²(x) = 1 - cos²(x)
+ cos²(x) + cos²(x)
1 = 1

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What is greater 0.13 or 13.5%?

Mumz [18]

Answer:13.5% is greater than 0.13

Step-by-step explanation:

0.13 or 13.5% which is greater

13.5%=13.5/100=0.135

0.13 or 0.135 which is greater

0.135 is greater which means 13.5% is greater

3 0

3 years ago

Find is prime factorization of 63

12345 [234]

<u>the answer would be 3 x 3 x 7</u>

7 0

4 years ago

Read 2 more answers

Solve nonhomogenous equation: x"+4x=cost

motikmotik

Answer:

$x(t) = Acos 2t + B sin 2t+\frac{cost}{3}$

Step-by-step explanation:

Given is a non homogeneous second degree equation as

$x"+4x=cost$

Auxialary equation is

$m^2+4 =0\\m = 2i, -2i$

Hence general solution is

x = Acos 2t + B sin 2t

Particular integral is = $\frac{cost}{D^2+4}$

Since t has coefficient 1, we substitute

$D^2 =-1\\PI = \frac{cost}{-1+4} =\frac{cost}{3}$

Hence full solution is

$x(t) = Acos 2t + B sin 2t+\frac{cost}{3}$

6 0

3 years ago

Find the<br> quotient for 12 2/5 / 1/4

Sveta_85 [38]

$12 \frac{2}{5}=\frac{62}{5}\\\\\frac{62/5}{1/4}=4\left(\frac{62}{5} \right)=\frac{248}{5}=\boxed{49 \frac{3}{5}}$

8 0

2 years ago

Write a fraction with a denominator of 9 whose equivalent percent is less than 100%. B.) Explain why the fraction is less than 1

gladu [14]

1/9 because 1/9 is equivalent to .1 repeating, and since it repeats, it would continue with the 1 for infinite decimal places, thus making 11.11111% because you move the decimal over 2 places to make the fraction turn into a decimal.

- cr. brainly user -

06/12/2017

3 0

3 years ago