`9 sec^(2) A - 9 tan^(2) A` =

Find the value of 9sec^(2)A-9tan^(2)A

9sec^(2)A-9tan^(2)A is equal to (a)1(b)9(c)8 (d) 0

If 10 sec^(2)x - 9tan^(2)x= 13 and 0^@le x lt 90^@ then x = _____

Choose the correct option Justify your choice : 9sec^(2)A-9tan^(2)A=….

Find the number of roots of the equation 16 sec^(3) theta - 12 tan^(2) theta - 4 sec theta =9 in interval (-pi,pi)

Find the number of roots of the equation 16 sec^(3) theta - 12 tan^(2) theta - 4 sec theta =9 in interval (-pi,pi)

Find the number of roots of the equation 16 sec^(3) theta - 12 tan^(2) theta - 4 sec theta =9 in interval (-pi,pi)

Find the number of roots of the equation 16 sec^(3) theta - 12 tan^(2) theta - 4 sec theta =9 in interval (-pi,pi)

Choose the correct option.Justify your choice (i) 9sec^(2)A-9tan^(2)A