NDA2017MathematicsTrigonometric Ratios & IdentitiesActual
What is the value of 18^ ?
Options
- A5 -1 10+2 5
- B5 -1 10+ 5
- C10+2 5 5 -1
- D10+ 5 5 -1
Correct answer
A. 5 -1 10+2 5
Step-by-step solution
18^ = 18^ 18^ = 5 -1 4 10+2 5 4 = 5 -1 10+2 5