the expression (2+√2)^4 has value lying between
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(2+√2)^2(2+√2)^2
=(4+2+2√2)(4+2+2√2)
=(6+2√2)(6+2√2)
=(36+8+24√2)
=44+24√2)
=44+24(1.4)
=44+33.6
=77.6
Hence,(2+√2)^4 lies between 77 and 78.
=(4+2+2√2)(4+2+2√2)
=(6+2√2)(6+2√2)
=(36+8+24√2)
=44+24√2)
=44+24(1.4)
=44+33.6
=77.6
Hence,(2+√2)^4 lies between 77 and 78.
skpassion:
thank you for answering but this is not the answer
Then???
Answered by
0
Answer: between 135 and 136
Step-by-step explanation:
(2+√2)⁴=(2+√2)²(2+√2)²
=(4+2+4√2)(4+2+4√2)
=(6+4√2)²
=36+32+48√2
=68+67.88
=135.88
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