If sec + tan = 5, then find the value of tan.
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e.
Given that
If sec + tan = 5 ......(1
As we know,
sec - tan = 1/ (sec + tan )
So,
sec - tan = 1/5 ......(2
Equation 1 - Equation 2
2 tan = 5 - (1/5) = 24/5
tan = 12/5