यदि (x - 4)⁴ = x⁴ है तो x का मान है

Er Chandra Bhushan
0


दिया गया है कि (x - 4)⁴ = x⁴ 

⇒  (x - 4)⁴ - x⁴ =0

[(x-4)²]²-(x²)²=0

[(x-4)²+x²][(x-4)²-x²]=0

चूँकि [(x-4)²+x²>0]

इसीलिए,[(x-4)²-x²]=0 

x²-8x+16-x²=0

-8x=-16

x=(-16/-8) 

x=2

अतः x=2 है ।


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