The value of Cos 120⁰ is - ½. It is the additive inverse of the value of cosine 60⁰ or cos 60⁰. Cosine is one of the basic trigonometric functions. It is expressed as a ratio of the base of a right-angled triangle to its hypotenuse. How to Find the Value of Cos 120?
Value of Cos 120 degree can be calculated using other trigonometric angles 90 degrees and 180 degrees. These cosine values can be gained from the trigonometric table.
Cos 120°: ValueIn order to find the value of cos 120°, students need to draw a right-angled triangle (refer to the image below) and can use either of the two formulas i.e, cos (180° –θ) = – cosθ or cos (90° + θ) = – sinθ....
Answer to: Find the value of cos 120. By signing up, you'll get thousands of step-by-step solutions to your homework questions. You can also ask...
Tan 120 degrees is the value of tangent trigonometric function for an angle equal to 120 degrees. Understand methods to find the value of tan 120 degrees with examples and FAQs.
The value of sin 180 is equal to the value of sin 0. Learn here to find the value of sin pi or sin π by using trigonometry functions and formulas. Derivation of sin 180 degrees at BYJU’S.
Step by step video, text & image solution for The minimum value of cos^(3) x+ cos^(3) (120^(@) + x) + cos^(3) (120^(@) -x) is by Maths experts to help you in doubts & scoring excellent marks in Class 12 exams.
Find the value of a, cos(a)+cos(a+120)+cos(a−120)=32. Trigonometric Identities Trigonometric identities are equations that show the relations between the trigonometric functions. Identities are true for all cases. They are very useful in simplifying complex equations...
NCERT solutions for CBSE and other state boards is a key requirement for students. Doubtnut helps with homework, doubts and solutions to all the questions. It has helped students get under AIR 100 in NEET & IIT JEE. Get PDF and video solutions of IIT-JEE Mains & Advanced previous year pap...
1. Find the value of sin 120o- cos 30o Solution: The value of sin o 32 Hence, Sin 120 o - Cos 30 o 2. Evaluate the value of 3 sin 30o+ tan 45o Solution: The value of sine 120 o 12 Value of tan 45 = 1 By substituting the values, we get ...