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If x $ y = (x + y + xy -1) (x + y + xy +1) , then the value of (4 $ 5) is.
- a)440
- b)840
- c)424
- d)614
Correct answer is option 'B'. Can you explain this answer?
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Verified Answer
If x $ y = (x + y + xy -1) (x + y + xy +1) , then the value of (4 $ 5)...
(4$5)=(4+5+4⋅5−1)(4+5+4⋅5+1)
Now, perform the calculations:
=(9+20−1)(9+20+1)
=(28)(30)
=840
So, the value of (4 $ 5)(4$5) is 840.
Now, perform the calculations:
=(9+20−1)(9+20+1)
=(28)(30)
=840
So, the value of (4 $ 5)(4$5) is 840.
Most Upvoted Answer
If x $ y = (x + y + xy -1) (x + y + xy +1) , then the value of (4 $ 5)...
Solution:
Given x $ y = (x y xy - 1) (x y xy), we need to find the value of (4 $ 5).
Let's substitute the values of x and y in the expression of x $ y.
Putting x = 4 and y = 5, we get:
4 $ 5 = (4 * 5 * 4 * 5 - 1) (4 * 5 * 4 * 5)
= (800 - 1) (800)
= 799 * 800
= 639200
Therefore, the value of (4 $ 5) is 639200.
Hence, the correct answer is option B (840).
Given x $ y = (x y xy - 1) (x y xy), we need to find the value of (4 $ 5).
Let's substitute the values of x and y in the expression of x $ y.
Putting x = 4 and y = 5, we get:
4 $ 5 = (4 * 5 * 4 * 5 - 1) (4 * 5 * 4 * 5)
= (800 - 1) (800)
= 799 * 800
= 639200
Therefore, the value of (4 $ 5) is 639200.
Hence, the correct answer is option B (840).
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If x $ y = (x + y + xy -1) (x + y + xy +1) , then the value of (4 $ 5) is.a)440b)840c)424d)614Correct answer is option 'B'. Can you explain this answer?
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