Is 1.5sin(2a)cos(2a)=sin(3a) ?

The answer to whether 1.5sin(2a)cos(2a)=sin(3a) is False

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prove 1.5sin(2a)cos(2a)=sin(3a)

prove

1.5 sin (2 a) cos (2 a) = sin (3 a)

False

Solution steps

1.5 sin (2 a) cos (2 a) = sin (3 a)

Show that the two sides are not equal

For

1.5 sin (2 a) cos (2 a) = sin (3 a)

plug in

a = 1

1.5 sin (2 \cdot 1) cos (2 \cdot 1) = - 0.56760 \dots

1.5 sin (2 \cdot 1) cos (2 \cdot 1)

Refine to a decimal form

= - 0.56760 \dots

sin (3 \cdot 1) = 0.14112 \dots

sin (3 \cdot 1)

Refine to a decimal form

= 0.14112 \dots

The two sides are not equal

\Rightarrow False

\frac{1}{1 - cot ( x )} = 1 - tan (x)

\frac{5 sin ( 2 x )}{2} = \frac{5}{2} (2 sin (x) cos (x))

\frac{sin ( 2 θ ) + sin ( θ )}{cos ( 2 θ ) + cos ( θ ) + 1} = tan (θ)

1 + (tan (a))^{2} = 1 + tan^{2} (a)

sec (\frac{x}{2}) = \frac{1}{cos ( \frac{x}{2} )}

Is 1.5sin(2a)cos(2a)=sin(3a) ?
The answer to whether 1.5sin(2a)cos(2a)=sin(3a) is False