Home
Class 12
PHYSICS
Evaluate cos 210^(@)...

Evaluate `cos 210^(@)`

Text Solution

Verified by Experts

`cos 210^(@)=cos(180^(@)+30^(@))=-cos 30^(@)=(sqrt3)/(2)`
Promotional Banner

Topper's Solved these Questions

  • UNIT & DIMENSIONS

    MOTION|Exercise Exercise - 1(Section A- Units)|6 Videos

  • UNIT & DIMENSIONS

    MOTION|Exercise Exercise - 1(Section B- Dimensions)|6 Videos

  • Thermodynamics

    MOTION|Exercise EXERCISE - 3 SECTION b|26 Videos

  • UNITS AND DIMENSIONS, BASIC MATHEMATICS

    MOTION|Exercise PRACTICE QUESTION|4 Videos

Similar Questions

Explore conceptually related problems

Find the value of : cos210^(@)

Evaluate tan210^(@)

Find the value of tan210^(@)

find the value of tan(210^(@))

Find the value of: (i) cos 210^(@) (ii) "sin" 225^(@) (iii) "tan" 330^(@) (iv) cot(-315^(@)) (v) "sec"(11pi)/(4)

Radius of a sector of a circle is 7 cm. If measure of arc of the sector is 210^(@) Find the area of sector

Find the value of (sin30^(@).tan330^(@).sec420^(@))/(tan135^(@).sin135^(@).sin210^(@)sec315^(@))

Find the values of the following trigonometric ratio: cos210^(0)

If sum n=210 then find the value of sum n^(2)

Find the value of sin330^(0)cos120^(0)+sin300^(0)*cos210^(@)