MCQ
$f(x) = sin^{20} x + cos^{48} x$ નો વિસ્તાર ..........
- A$[0, 1 ]$
- ✓$(0, 1]$
- C$(0, \infty)$
- Dએક પણ નહી
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$1 + 6 + \frac{{9({1^2} + {2^2} + {3^2})}}{7} + \frac{{12({1^2} + {2^2} + {3^2} + {4^2})}}{9} + \frac{{15({1^2} + {2^2} + .... + {5^2})}}{{11}} + ...$ $15$ પદ સુધી