Question #79e30

1 Answer
Jim G.
Nov 30, 2017

#"see explanation"#

Explanation:

#"using the "color(blue)"trigonometric identities"#

#•color(white)(x)sectheta=1/costheta" and "csctheta=1/sintheta"#

#•color(white)(x)tantheta=sintheta/costheta" and "cottheta=costheta/sintheta"#

#"consider left hand side"#

#1/cancel(costheta)xx(costhetacancel(costheta))/sin^2theta-costheta/sinthetaxx1/sintheta#

#=costheta/sin^2theta-costheta/sin^2theta#

#=(costheta-costheta)/sin^2theta#

#=0=" right hand side "rArr"verified"#

Related questions
Impact of this question
214 views around the world
You can reuse this answer
Creative Commons License