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| 1. |
If Sec A + Tan A = X, find the value of Sec A- Tan A. |
| Answer» SecA + TanA = X.Sec^2A - Tan^2A = 1 .(SecA + TanA)(SecA - TanA) =1.X(SecA - TanA )= 1.SecA- TanA=1/X. | |