x = e पर x के संबंध में sin(ln x) + cos(ln x) का अवकलज क्या है?

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NDA 01/2025: English Subject Test
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अवधारणा:

गणना:

माना f(x) = sin(ln x) + cos(ln x)

जैसा कि हम जानते हैं कि,

जैसा कि हम जानते हैं कि, ln(e) = 1

अतः विकल्प 1 सही है।

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