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if sinx=a and secx +cosecx= b then what is the value of b(a 2 -1 ) Please tell it with method

if sinx=a and secx +cosecx= b then what is the value of b(a2 -1)
 
 
Please tell it with method

Grade:10

1 Answers

Sourabh Singh IIT Patna
askIITians Faculty 2104 Points
7 years ago
a2-1 = -cos2x ,
b = (sinx + cosx)/sinx*cosx

b(a2-1) = (sinx + cosx)*-cotx

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