Home
Class 12
MATHS
In DeltaABC, prove that "cosec"(A)/(2)+"...

In `DeltaABC`, prove that `"cosec"(A)/(2)+"cosec"(B)/(2)+"cosec"(C)/(2) ge 6` .

Text Solution

Verified by Experts

The correct Answer is:
`rArr cosec.(A)/(2)+cosec.(B)/(2)+cosec.(C)/(2) ge 6`
Promotional Banner

Topper's Solved these Questions

  • TRIGONOMETRIC EQUATIONS AND INEQUATIONS

    ARIHANT MATHS ENGLISH|Exercise EXAMPLES ( Matching Type Questions )|1 Videos

  • TRIGONOMETRIC EQUATIONS AND INEQUATIONS

    ARIHANT MATHS ENGLISH|Exercise EXAMPLES ( Subjective Type Examples )|2 Videos

  • THREE DIMENSIONAL COORDINATE SYSTEM

    ARIHANT MATHS ENGLISH|Exercise Three Dimensional Coordinate System Exercise 12 : Question Asked in Previous Years Exam|2 Videos

  • TRIGONOMETRIC FUNCTIONS AND IDENTITIES

    ARIHANT MATHS ENGLISH|Exercise Exercise (Questions Asked In Previous 13 Years Exam)|19 Videos

Similar Questions

Explore conceptually related problems

"cosec"^(-1)(2)

Prove that sec^(2)A+"cosec"^(2)A=sec^(2)A"cosec"^(2)A .

For triangle ABC prove that sec((A+B)/2)="cosec"C/2

In DeltaABC , 1/a,1/b,1/c are in A.P. prove that "cosec"^(2)A/2, "cosec"^(2)B/2, "cosec"C/2 are also in A.P.

Prove that : ("cosec"A+1)/("cosec"A-1)=secA+tanA

Prove that: sec^(2)x+"cosec"^(2)xge4

In a triangle ABC, prove that (b + c)/(a) le cosec.(A)/(2)

prove that tan A+cot A=2 cosec 2A

Prove that : (sec^(2)A-1)("cosec"^(2)A-1)=1

Prove that: cotA-cot2A="cosec"2A