Free math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework questions with step-by-step explanations, just like a math tutor.

If A + B + C = `pi/2`, prove the following sin 2A + sin 2B + sin 2C = 4 cos A cos B cos C. If ∆ABC is a right triangle and if ∠A = `pi/2` then prove that sin 2 B + sin 2 C = 1

Sin 105 degrees is the value of sine trigonometric function for an angle equal to 105 degrees. The value of sin 105° is (√6 + √2)/4 or 0.9659 (approx). What is the Value of Sin 105 Degrees in Terms of Cot 105°?

First, split the angle into two angles where the values of the six trigonometric functions are known. In this case, 105 105 can be split into 45+60 45 + 60. sin(45+60) sin (45 + 60) Use the sum formula for sine to simplify the expression. The formula states that sin(A+B) = sin(A)cos(B)+cos(A)sin(B) sin (A + B) = sin (A) cos (B) + cos (A) sin (B).

Use our sin(x) calculator to find the sine of 105 degrees - sin(105 °) - or the sine of any angle in degrees and in radians.

Compute answers using Wolfram's breakthrough technology & knowledgebase, relied on by millions of students & professionals. For math, science, nutrition, history, geography, engineering, mathematics, linguistics, sports, finance, music…

Compute answers using Wolfram's breakthrough technology & knowledgebase, relied on by millions of students & professionals. For math, science, nutrition, history, geography, engineering, mathematics, linguistics, sports, finance, music…

What is the value of sin (105) ?

Oct 29, 2020 · Hence, the exact value of sin 105° is (√6 + √2)/4. Sin 105 degrees has a numeric value of 0.96592 . The equivalent angle in radians to the given angle (105 degrees) can also be used to define sin (1.83259).

Calculate sin(105) sin is found using Opposite/Hypotenuse. Determine quadrant: Since 90 105 180 degrees it is located in Quadrant II. sin is positive. Determine angle type: 105 > 90°, so it is obtuse. sin(105) = 0.96592582683105. Special Angle Values