Question

pls answer this question

Answer 1

Step-by-step explanation:

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Given,.

x=c√b+4

Then,.

We need to find x+1/x

C√b+4+1/c√b+4

c√b+4 × c√b+4 + 1

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c√b+4

= c²×b+16+1

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c√b+4

=. c²b+17

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c√b+4

Hope it will help you

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Answer 2

Answer:

$x = c \sqrt{b} + 4 \\ \\ x + \frac{1}{x} \\ =( c \sqrt{b} + 4 )+ \frac{1}{c \sqrt{b} + 4} \\ = \frac{(c \sqrt{b} + 4)(c \sqrt{b} + 4 ) + 1}{c \sqrt{b} + 4 } \\ = \frac{ {c}^{2} b +8c \sqrt{b} + 16 + 1 }{c \sqrt{b} + 4} \\ = c \sqrt{b} + 17$

Hope it helps