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Given that the second power of [a plus b] is equal to 7, and the second power of [a minus b] is equal to 4, calculate the value of the second power of a plus b and ab Given [a+b] to the power of 2 equals 7,[ a minus b] to the power of 2 equals 4, find the value of a to the power of 2 plus b to the power of 2 and ab
4Ab=(a+b)^2-(a-b)^2=7-4=3
Ab=3/4
A^2+b^2=(a+b)^2-2ab=11/2
7Th power of 7+7th power of 7+7th power of 7+7th power of 7+7th power of 7+7th power of 7+7th power of 7 equals ()
7*7^7=7^8=5764801
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