If P=√7-√5÷√7+√5 and q=√7+√5÷√7-√5
Find the value of P square - q square
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Hey!
Rationalise both p and q
write in form p^2 - q^2
Find the value.
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Hope you got the answer.
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Rationalise both p and q
write in form p^2 - q^2
Find the value.
Please see the images.
Hope you got the answer.
Please mark as Branliest.
Thanks !
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P=√7-√5/√7+√5
Rationalize
P=(√7-√5)^2/(√7)^2-(√5)^2
P=7-2√35+5/7-5
P=12-2√35/2
P=6-√35..1
Q=√7+√5/√7-√5
Rationalize
Q=(√7+√5)^2/(√7)^2-(√5)^2
Q=7+2√35+5/7-5
Q=12+2√35/2
Q=6+√35..2
P^2+Q^2=(6+√35)^2+(6-√35)^2
P^2+Q^2=36+12√35+35+36-13√35+35
P^2+Q^2=142
Rationalize
P=(√7-√5)^2/(√7)^2-(√5)^2
P=7-2√35+5/7-5
P=12-2√35/2
P=6-√35..1
Q=√7+√5/√7-√5
Rationalize
Q=(√7+√5)^2/(√7)^2-(√5)^2
Q=7+2√35+5/7-5
Q=12+2√35/2
Q=6+√35..2
P^2+Q^2=(6+√35)^2+(6-√35)^2
P^2+Q^2=36+12√35+35+36-13√35+35
P^2+Q^2=142
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