Home
Class 12
MATHS
Prove that (cos 9^(@)+sin9^(@))/(cos9^(@...

Prove that `(cos 9^(@)+sin9^(@))/(cos9^(@)-sin9^(@)) = cot 36^(@)`.

Promotional Banner

Topper's Solved these Questions

  • IPE:MAY -2017[AP]

    SRISIRI PUBLICATION|Exercise SECTION-B (SAQs)|7 Videos

  • IPE:MAY -2017[AP]

    SRISIRI PUBLICATION|Exercise SECTION-C (LAQs)|6 Videos

  • IPE:MAT-2019(AP)

    SRISIRI PUBLICATION|Exercise IPE:MAY-2019(AP) (MATHS-1A)|22 Videos

  • IPE:MAY-2014

    SRISIRI PUBLICATION|Exercise SECTION-C|7 Videos

Similar Questions

Explore conceptually related problems

Prove that (cos9^(@)+sin9^(@))/(cos9^(@)-sin9^(@))=cot36^(@)

cos 9^(@) - sin 9^(@)=

A =(cos 9^(@) - sin 9^(@))/(cos 9^(@) + sin 9^(@)) , B = (cos 21^(@) + sin 21^(@))/(cos21^(@) -sin21^(@)) and C= tan 20^(@) + tan40^(@) + sqrt(3)tan20^(@) tan40^(@) then descending order is:

(sin9^(@)-cos9^(@))/(sin48^(@)sin 12^(@))=

sin21^(@)cos9^(@)-cos84^(@) cos6^(@)=

sin 21^(@) cos 9^(@) - cos 84^(@) cos 6^(@)=

A=(cos9^(@)-sin9^(@))/(cos9^(@)+sin 9^(@)), B=(cos21^(@)+sin21^(@))/(cos21^(@)-sin21^(@)) and C=tan 20^(@)+tan 40^(@)+sqrt(3)tan20^(@)tan40^(@) then descending order is

Prove that sin21^(@)cos9^(@)-cos84^(@)cos6^(@)=1/4 .

int(1)/(4cos^(2)x+9 sin^(2)x)dx=