Solve: cosec A/(cosec A – 1) + cosec A/(cosec A + 1) = 2 sec2 A

(i) \frac { cosecA }{ cosecA-1 } +\frac { cosecA }{ cosecA+1 } =2{ sec }^{ 2 }A
(ii) cotA-tanA=\frac { { 2cos }^{ 2 }A-1 }{ sinA-cosA }
(iii) \frac { cotA-1 }{ 2-{ sec }^{ 2 }A } =\frac { cotA }{ 1+tanA }

Solution:

(i) \frac { cosecA }{ cosecA-1 } +\frac { cosecA }{ cosecA+1 } =2{ sec }^{ 2 }A
L.H.S = \frac { cosecA }{ cosecA-1 } +\frac { cosecA }{ cosecA+1 }

ML Aggarwal Class 10 Solutions for ICSE Maths Chapter 18 Trigonometric Identities Ex 18 Q18.1

ML Aggarwal Class 10 Solutions for ICSE Maths Chapter 18 Trigonometric Identities Ex 18 Q18.2

ML Aggarwal Class 10 Solutions for ICSE Maths Chapter 18 Trigonometric Identities Ex 18 Q18.3

ML Aggarwal Class 10 Solutions for ICSE Maths Chapter 18 Trigonometric Identities Ex 18 Q18.4

More Solutions:

Leave a Comment