` d /(dx) ( 5x^(7) + 2x)` का मान ज्ञात कीजिए ।

Explanation

` d/(dx) ( 5x^(7) +2x)- d/(dx) (5x^(7)) + d/(dx) 2x = 5 d/(dx) (x^(7))+ 2 d/(dx) (x)`
` = 5.7 x^(6) + 2 = 35x^(6) +2.`