# What is the exact value of sin 75?

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Hence the value of Sin 75 degree is equal to (√3 + 1) / 2√2.

## What is sin 75 degrees in radians?

To convert degrees to radians, multiply by π180° π 180 ° , since a full circle is 360° or 2π radians. The exact value of sin(75) is √2+√64 2 + 6 4 .

## Which identity can be used to find sin 75?

= sin A cos B + cos A sin B, we can find the sine of (45° + 30°) to give sine of 75 degrees.

## What is the value of sin 75 by 2?

The exact value of sin(75) is √2+√64 2 + 6 4 .

## How do you find sin 75 without a calculator?

sin 75°: Now using the formula for the sine of the sum of 2 angles, sin(A + B) = sin A cos B + cos A sin B, we can find the sine of (45° + 30°) to give sine of 75 degrees.

## What is the value of sin 15?

Value of Sin 15 degree = (√3 – 1) / 2√2.

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## What is the exact value of sin 75 using half angle?

For example, you might not know the sine of 75 degrees, but by using the half angle formula for sine, you can figure it out based on the known value of sin(150) = 1/2.

## How do you calculate half angle of sin 75?

Formula used: To find the value of sinθ by using half angle we will use the formula of sinθ=√1−cos2θ2.

## What is the exact value of sin (- 105?

sin (105) = sin (15 + 90) = cos 15. Apply the trig identity: cos2x=2cos2x−1. sin(105)=cos(15)=√2+√32.

## How do you find the value of sin 74?

The sin of 74 degrees is 0.96126, the same as sin of 74 degrees in radians. To obtain 74 degrees in radian multiply 74° by π / 180° = 37/90 π. Sin 74degrees = sin (37/90 × π).

## Is the value of sin 30?

The value of sin 30 degrees is 0.5.

## How do you find the value of cos 75?

Thus, the value of cos 75o is (√3-1) / 2√2.

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## What is an exact value?

Definition. Exact value is where you cannot estimate the value you must be precise, eg; you can’t estimate something as being around about 5 centimetres; no you need an exact value such as 5.62. Exact value.

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## Is the value of sin 60?

From the above equations, we get sin 60 degrees exact value as √3/2.

## What is the definition of a sin?

(Entry 1 of 4) 1a : an offense against religious or moral law. b : an action that is or is felt to be highly reprehensible it’s a sin to waste food. c : an often serious shortcoming : fault.