Math, asked by anushkagaur5844, 1 year ago

Evaluate x4 + 1/x4 if x - 1/x = 6

Answers

Answered by Anonymous
3

\huge\red\bigstar\huge\mathcal{\underline{ \underline{SOLUTION}}}\bigstar

 \rightarrow x {}^{4}  +  \frac{1}{x {}^{4} }  = (x {}^{2}) {}^{2}   +  (\frac{1}{x {}^{2} } ) {}^{2}  \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  = (x {}^{2}  +  \frac{1}{x {}^{2} } ) - 2 \times x {}^{2}  \times  \frac{1}{x {}^{2} }  \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: = ((x  -  \frac{1}{x} ) {}^{2}  + 2 \times x \times  \frac{1}{x} ) - 2 \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  = ((x -  \frac{1}{x} ) {}^{2}   + 2) - 2 \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:   \:  \:  \:  \:  \:  \:  \:  \:  \: = 6 {}^{2}   +   \cancel2-  \cancel2 \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:   \:  \:  \:  \:  \:  \:  \: = 36

\large\mathfrak{...hope\: this \:helps\: you.....}

Similar questions