Question

[7{(81)¼+(256)¼}¼]4​

Answer 1

Answer:

22518.8 approx

Step-by-step explanation:

Solution:-

[7 (81^1/4+256^1/4)1/4]⁴

= [7{(3⁴)^1/4 +(4⁴)^1/4} ×1/4]⁴

= [7(3+4)×1/4]⁴ = (7×7×1/4)⁴

= (49/4)⁴ = 49⁴/4⁴

= (5764801/256)

= 22518.8 approximate