Table of Contents
What is sin x cos x equal to?
Answer : The expression for sin x + cos x in terms of sine is sin x + sin (π / 2 – x). Let us see the detailed solution now.
What is the value of sin x if cos x 4 5 *?
Therefore, sin x = ±3/5 is the final answer.
What is cos 2 equal to?
Cos 2x is one of the double angle trigonometric identities as the angle in consideration is a multiple of 2, that is, the double of x. Let us write the cos 2x identity in different forms: cos 2x = cos2x – sin2x. cos 2x = 2cos2x – 1.
What is the formula of 2sinxcosx?
We know that sin2x=2sinxcosx.
What is the value of sin inverse 4 by 5?
1 Expert Answer Yes, there are an infinite number of angles for which sin(θ) = 4/5. However, the inverse sine function has a limited domain [-1, 1] and range [-90°, 90°], meaning that there is only one answer (≈53°) for sin-1(4/5).
What is value of sin 2x?
The general formula of sin 2x is sin 2x = 2 sin x cos x = 2 (sin x cos2x)/(cos x) = 2 (sin x/cos x) (1/sec2x) = (2 tan x)/(1 + tan2x).
How to find the equality between sin and cos?
cos(x)sin(x) + sin(x)cos(x) = sin(2x) But since we multiplied by 2 early on to get to that, we need to divide by two to make the equality, so cos(x)sin(x) = sin(2x) 2
Which is the absolute value of sin ( x )?
The absolute value is the distance between a number and zero. The distance between 0 0 and 1 1 is 1 1. Divide 2 π 2 π by 1 1. The period of the sin(x) sin ( x) function is 2π 2 π so values will repeat every 2π 2 π radians in both directions.
What does cosx SiNx equal when multiplied by two?
What does cosx sinx equal? If we multiply it by two we have Which we can say it’s a sum Which is the double angle formula of the sine But since we multiplied by 2 early on to get to that, we need to divide by two to make the equality, so
How to calculate sin ( x ) on a calculator?
In order to calculate sin (x) on the calculator: 1 Enter the input angle. 2 Select angle type of degrees (°) or radians (rad) in the combo box. 3 Press the = button to calculate the result.