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## How do you convert Tan into sin?

**Express Sine in Terms of Tangent**

- Start with the ratio identity involving sine, cosine, and tangent, and multiply each side by cosine to get the sine alone on the left.
- Replace cosine with its reciprocal function.
- Solve the Pythagorean identity tan
^{2}θ + 1 = sec^{2}θ for secant. - Replace the secant in the sine equation.

## What is sin equal to in math?

In a right angled triangle, the sine of an angle is: The length of the side opposite the angle divided by the length of the hypotenuse. The abbreviation is **sin**. **sin θ = opposite / hypotenuse**.

## Is the value of sin 45?

The value of Sin 45 degree in decimal form is **0.7071067812**.

## How do you find sin 25 without a calculator?

How to Find the Value of Sin 25 Degrees? The value of sin 25 degrees can be calculated by constructing an angle of 25° with the x-axis, and then finding the coordinates of the corresponding point (0.9063, 0.4226) on the unit circle. The value of sin 25° is equal to the y-coordinate (0.4226). ∴ **sin 25° = 0.4226**.