Question

Find the cubic polynomial whose zero
Prove that (sec²0-1) (cosec0-1)=1
If sec O+tan O=3, then find the value
What is the angle of elevation of the
is equal to its height?
A is the set of factors of 12. List allt​

Answer 1

(sec²0-1) (cosec²0-1)=1

LHS= (sec²0-1) (cosec²0-1)

=>( 1/cos² -1 ) (1/sin² -1 )

=> (1-cos²/cos² )(1-sin²/sin²)

=> sin²/cos² × cos²/sin²

=> 1 = RHS