Question:
Question 9: 9 sec^2 A - 9 tan^2 A =
Answer:
Given,
9 sec2 A - 9 tan2 A
= 9(sec2 A - tan2 A)
= 9*1 {since sec2 A - tan2 A = 1}
= 9
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Given,
9 sec2 A - 9 tan2 A
= 9(sec2 A - tan2 A)
= 9*1 {since sec2 A - tan2 A = 1}
= 9