Question

$(a + 1 \div a) = 4 find \: {a}^{2} + 1 \div {a}^{2)}$
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Answer 1

Answer-

A+1/a=4

squaring both sides we get

a2+1/a2+2*a*1/a=16

a and 1/a will cancel out each other so we are left with

a2+1/a2+2=16

a2+1/a2=14

Answer 2

Answer:

a process by which a chemical is converted from a liquid solution into a solid crystalline state.