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If X = √7 root 5 y equals to root 7 minus root 5 then find X raise to power 4 Y raise to power 4?
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If X = √7 root 5 y equals to root 7 minus root 5 then find X raise t...
Solution:



Given:

X = √7

y = √7 - √5


To find:

X4 Y4


Steps:


Step 1: Calculate X4:

X4 = (√7)4

X4 = 7 × 7

X4 = 49


Step 2: Calculate Y4:

Y4 = (y)4

Y4 = (√7-√5)4

Y4 = (7 + 5 - 2 × √7 × √5)2

Y4 = (12 - 2√35)2

Y4 = 144 - 48√35 + (2√35)2

Y4 = 144 - 48√35 + 140

Y4 = 284 - 48√35


Step 3: Simplify X4 Y4:

X4 Y4 = 49 × (284 - 48√35)

X4 Y4 = 13796 - 2352√35


Answer:

X4 Y4 = 13796 - 2352√35


Explanation:

We are given the values of X and y and are required to find X4 Y4. We first calculate X4 which is simply the fourth power of √7. Next, we calculate Y4 which involves expanding the expression (√7-√5)4. We use the binomial theorem to do this and simplify the resulting expression. Finally, we multiply X4 and Y4 to get the required answer.
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