prove csc(u)=2

Solution

prove

csc (u) = 2

False

Solution steps

csc (u) = 2

Show that the two sides are not equal

For

csc (u) = 2

plug in

u = 1

csc (1) = 1.18839 \dots

csc (1)

Refine to a decimal form

= 1.18839 \dots

The two sides are not equal

\Rightarrow False

p ro v e csc (x) - cos^{2} (x) - csc (x) = sin (x)

p ro v e 1 - \frac{cos ^{2} ( x )}{1 + sin ^{2} ( x )} = sin (s)

p ro v e csc (x) = \frac{1}{sin ( x )} = 2

p ro v e 5 - 5 + 5 - 5 - 5 - 5 + 5 - 5 + 5 + 5 - 5 = - 5

p ro v e 1 + cos^{4} (x) - sin^{4} (x) = 2 cos^{2} (x)