1.

Find the value of p, if log cos 60° sin30° = p.1. 42. 23. 34. 1

Answer» Correct Answer - Option 4 : 1

CONCEPT:

  • As we know that \(\operatorname{Sin} {30^ \circ } = \frac{1}{2}\) and \(\operatorname{cos} {60^ \circ } = \frac{1}{2}\).
  • log x (x) = 1

CALCULATION:

Given log cos 60° sin30° = p

On putting  \(\operatorname{Sin} {30^ \circ } = \frac{1}{2}\) and \(\operatorname{cos} {60^ \circ } = \frac{1}{2}\) we get, 
\( ⇒ {\log _{\frac{1}{2}}}\frac{1}{2} = p\)

⇒  p = 1

Therefore, option (d) is the correct answer.



Discussion

No Comment Found

Related InterviewSolutions