If A lies in the first quadrant and 6tanA = 5, then the value of 
is:
Show answer & explanation
Correct answer: D
Explanation
The correct answer is Option 4 i.e. 1
| Understanding | Application |
| Tricks |
Given 6tanA = 5 tanA = 5/6 = p/b So h = √(52 + 62) = √(25 + 36) = √61 |
| Now |
= {8(5/√61) - 4(6/√61)}/{(6/√61) + 2(5/√61)} = {40/√61 - 24/√61}/{6/√61 + 10/√61} = {16/√61}/{16/√61} = 1 |