3 years ago

What is the answer to the equation 7/9+1/6+3/5

Mathematics

1 answer:

Andrej [43]3 years ago

6 0

Answer:

Step-by-step explanation:

7/9+1/6+3/5

Least common factor is 90

Multiply

70/90+15/90+54/90

Is 139/90 which is. 1 49/90

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The angles of a triangle are 2x, 3x, and 4x degrees. Find the value of x.

muminat

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3 years ago

What is the antiderivative of e^x^2?

ddd [48]

Answer: The antiderivative of $e^{x^{2}}$ is $\sqrt{\pi} \sqrt{e^{x^2}-1} +C$ .

Explanation:

$I=\int{e^{x^2}dx}\\I^2=\int{e^{x^2}dx}\int{e^{x^2}dx}$

Using dawson integral.

$I^2=\int{e^{x^2}dx}\int{e^{y^2}dy}$

$I^2=\int{\int{e^{x^2+y^2}dxdy}}$

Put $x^2+y^2=r^2$

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Use substitution method and sunbstitute $r^2=t$ .

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$I^2=\frac{1}{2}|\theta|_{0}^{2\pi}|e^t|_{0}^{x^2}\\I^2=\frac{1}{2}(2\pi)(e^{x^2}-1)\\I=\sqrt{\pi}\sqrt{e^{x^2}-1}$ .

Therefore, the antiderivative of $e^{x^{2}}$ is $\sqrt{\pi} \sqrt{e^{x^2}-1} +C$ .

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3 years ago

Solve 5/8 + 3/4 -2/3-5/6 A.11/12 B.-2 1/16 C.-11/12 D.2 1/16 Pwease help

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2 years ago

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