Home
Class 10
MATHS
(cos^(2)56^(@)+cos^(2)34^(@))/(sin^(@)56...

`(cos^(2)56^(@)+cos^(2)34^(@))/(sin^(@)56^(@)+sin^(2)34^(@))+3tan^(2)56^(@)tan^(2)34^(@)=?`

A

`3(1)/(2)`

B

4

C

6

D

5

Text Solution

Verified by Experts

The correct Answer is:
B
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • TRIGONOMETRIC IDENTITIES

    RS AGGARWAL|Exercise Multiple Choice Questions (Mcq)|53 Videos

  • TRIANGLES

    RS AGGARWAL|Exercise Test Yourself|20 Videos

  • TRIGONOMETRIC RATIOS

    RS AGGARWAL|Exercise Exercise 10|35 Videos

Similar Questions

Explore conceptually related problems

Show that (i) cos60^(@)*cos30^(@)-sin60^(@)*sin30^(@)=cos90^(@) (ii) cos60^(@)=1-2sin^(2)30^(@)=2cos^(2)30^(@)-1 (iii) (tan60^(@)-tan30^(@))/(1+tan60^(@)*tan30^(@))=tan30^(@)

(cos10^(@)+sin11^(@))/(cos10^(10)-sin11^(@))=tan56^(@)

Knowledge Check

  • If 6(sec^(2) 59^(@)-cot^(2)31^(@))-(2)/(3) sin90^(@)-3 tan^(2)56^(@)y tan^(2)34^(@)=(y)/(3) then the value of y is :

    A
    `(8)/(5)`
    B
    `-(8)/(5)`
    C
    `(2)/(3)`
    D
    `(-2)/(3)`

  • The value ((cos9^(@)+sin81^(@))(sec9^(@)+cosec81^(@)))/(sin56^(@) sec34^(@)+cos25^(@)cosec65^(@)) is :

    A
    `(1)/(2)`
    B
    4
    C
    `(1)/(4)`
    D
    2

  • Without using trigonometric tables, find the value of : (2)/(3) ((sec 56^(@))/( cosec 34^(@))) - 2 cos^(2) 20^(@) + (1)/(2) cot 28^(@) cot 35^(@) cot 45^(@) cot 62^(@) cot 55^(@) - 2 cos ^(2) 70^(@)

    A
    `(4)/(5)`
    B
    `-(3)/(4)`
    C
    `-(5)/(6)`
    D
    1

    • Similar Questions

    Explore conceptually related problems

    The value of (cos68^(@))/(sin56^(@)*sin34^(@)*tan22^(@)) is equal to

    sin160^(@)cos110^(0)+sin250^(@)cos340^(@)+tan110^(@)tan340^(@)=1)-12)13)34c

    What is the value of "cosec"^(2) 68^(@) + sec^(2)56^(@) - cot^(2)34^(@) - tan^(2)22^(@) ?

    Which of the following numbers is/are twin prime with 5(C)4((cos^(3)10^(0)+sin^(3)20^(@))/(cos10^(0)+sin20^(@)))(D)(cos68^(@))/(sin56^(@)sin34^(0)tan22^(@))

    Prove that tan56^(@)=(cos11^(@)+sin11^(@))/(cos11^(@)-sin11^(@))

    Home
    Profile