Question

what is the formulas of sin²2x ???​

Answer 1

(sin2x)^2=(2sinxcosx)^2

Answer 2

Concept :

The type of mathematics deals with the relationship in the middle of the sides and angles of triangles. trigonometry is the branch of mathematics concerned with some functions of angles and application to calculations. Here are six functions of an angle frequently used in trigonometry. The abbreviations and names are sine (sin), cosine (cos), tangent (tan), cotangent (cot), secant (sec), and cosecant (csc).

Given :

We have given $sin ^{2} 2x$.

Solution :

Now, finding the formula of $sin ^{2} 2x$

We know that,

$sin^22x=(sin2x)^2=(2sin x cos x)^2\\=4sin^2x cos^2x\\=sin2x=2sin x cos x$

So that the formula of $sin ^{2} 2x$ is $2 sin x cos x$.

Hence, the correct answer is $sin ^{2} 2x$ $=2 sin x cos x$.

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