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3 years ago

Csc2theta=csctheta/2costhetaCan you help verify the identity

Mathematics

1 answer:

Yakvenalex [24]3 years ago

7 0

csc(2x) = csc(x)/(2cos(x))

1/(sin(2x)) = csc(x)/(2cos(x))

1/(2*sin(x)*cos(x)) = csc(x)/(2cos(x))

(1/sin(x))*1/(2*cos(x)) = csc(x)/(2cos(x))

csc(x)*1/(2*cos(x)) = csc(x)/(2cos(x))

csc(x)/(2*cos(x)) = csc(x)/(2cos(x))

The identity is confirmed. Notice how I only altered the left hand side (LHS) keeping the right hand side (RHS) the same each time.

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Answer:

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Step-by-step explanation:

From the question we are told that

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$E = 2.58 * \frac{1000 }{\sqrt{50} }$

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$w = 2 * E$

substituting values

$w = 2 * 364.9$

$w = \$ 729.7$

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