Question

If 9sec2 A - 9tan2 A =x, then find the value of x

Answer 1

Step-by-step explanation:

9 [ sec² A- tan²A ] = x

9 [ 1 ] = x [ sec²A - tan²A = 1 ]

x = 9 Answer

Answer 2

Answer:

x is equal to 9

Step-by-step explanation:

take 9 common, then in the bracket, it would be sec2A-tan2A . sec2A- tan2A = 1 according to a law. so 9*1= 9.

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