Q2 Find the values of the following:sin120o View Solution Q3 Find the value of sin120ocos(−600o) View Solution Q4 Assertion :Consider the following statements.The value of sin120o can be derived by taking θ=240o in the equation 2sinθ2=√1+sinθ−√1−sinθ. Reason: The ...
CENTRE OF MASSBOOK-ALLENCHAPTER-CENTRE OF MASSEXERCISE-EXERCISE-V B 19Videos Similar Questions Find the value of (i)cos(−30∘)(ii)sin120∘(iii)sin135∘(iv)cos120∘(v)sin270∘(vi)cos270∘ View Solution Find the value of ...
If cosA=13,then find the values of sin A and tan A. View Solution View Solution Find the value of : 120 % of रु.250 View Solution Find the factors of 120 View Solution Find the value of : 25% of 120 litres View Solution ...
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....
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For example, sine (18° - 15°) will give us the sine of 3 degrees. which is sin 3° = sin (18° − 15°) = sin 18° cos 15° − sin 15° cos 18° This gives us the following value of sin 3°: or other forms depending how you factor the above. ...
百度试题 结果1 题目Use a calculator to find the following.. sin (-120°) 相关知识点: 试题来源: 解析 0998a- 反馈 收藏
Find the value ofsin60∘cos30∘+cos60∘sin30∘. View Solution Find the value ofsin330∘cos120∘+cos210∘sin300∘ View Solution What is the value ofcos10∘+sin20∘cos20∘−sin10∘? View Solution View Solution
The value ofsin50∘−sin70∘+sin10∘is View Solution Prove that:sin500−sin700+sin100=0 View Solution The value ofsin10∘sin30∘sin50∘sin70∘is equal to . View Solution Prove that:sin800−cos700=cos500 View Solution ...