How do you find the value of sin 42?

How to Find the Value of Sin 42 Degrees? The value of sin 42 degrees can be calculated by constructing an angle of 42° with the x-axis, and then finding the coordinates of the corresponding point (0.7431, 0.6691) on the unit circle. The value of sin 42° is equal to the y-coordinate (0.6691). ∴ sin 42° = 0.6691.

How do you calculate sin 40?

The value of sin 40 degrees can be calculated by constructing an angle of 40° with the x-axis, and then finding the coordinates of the corresponding point (0.766, 0.6428) on the unit circle. The value of sin 40° is equal to the y-coordinate (0.6428). ∴ sin 40° = 0.6428.

How do you find the value of sin 32?

The value of sin 32° is equal to the y-coordinate (0.5299). ∴ sin 32° = 0.5299.

What is the cosine of 42 in degrees?

0.7431448
Since cosine function is positive in the first quadrant, thus cos 42° value = 0.7431448. . . Since the cosine function is a periodic function, we can represent cos 42° as, cos 42 degrees = cos(42° + n × 360°), n ∈ Z.

How do you solve sin 43?

The value of sin 43° is equal to the y-coordinate (0.682). ∴ sin 43° = 0.682.

What is value of cos45?

The value of cos 45° is equal to 1/√2.

How do you find sine 45 without a calculator?

The hypothenuse AC can easily be calculated now: AC=√BC2+AB2=√12+12=√2 . The sine is defined as the ratio between the opposed side and the hypothenuse. Therefore, sin45o=1√2=√22 . In decimal form, it is roughly 0.7071067812 .

What is the value of TAN 40 without calculator?

Hence the value of tan 40° = y/x = 0.8391 (approx).

How do you find the value of cos 40?

The value of cos 40° is equal to the x-coordinate (0.766). ∴ cos 40° = 0.766.

What is the value of sin 48?

0.7431
Sin 48 degrees is the value of sine trigonometric function for an angle equal to 48 degrees. The value of sin 48° is 0.7431 (approx).

What is the exact value of sin15?

sin15∘=√6−√22∗2 ⁡ 15 ∘ = 6 − 2 2 ∗ 2 .