1.

W) g °C, A°C, =11:5 तो / का मान ज्ञात कॉजिए।

Answer»

=>15Cr / 11 = 15Cr-1 / 5=>15Cr / 15Cr-1​ = 11/5=>15-r + 1 / r = 11/5(nCr / nCr-1 = n- r+1/ r )=>80 = 11r + 5r​=>r= 5

hit like if you find it useful



Discussion

No Comment Found