Question #74225
2 Answers
Dec 18, 2017
It is proved below;
Explanation:
Dec 18, 2017
Explanation:
"using the "color(blue)"trigonometric identity"
•color(white)(x)tanA=sinA/cosA
"consider the right hand side"
tanA(1+cosA)
=tanA+sinA/cancel(cosA)xxcancel(cosA)
=sinA+tanA
="left hand side "rArr"verified"