hi......, please answer this question
answer both of them
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3
i hope its help you.......
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Anonymous:
question me cosec diya tha
app sec kar dhi
2nd question also
aap is concept pe banai ban jayega
Answered by
6
HOPE IT WILL HELP UU...
2)
b*2 -4ac
=(2ac+2bd)^2-4(a^2+b^2)(c^2+d^2)
=4a^2c^2+4b^2d^2-4a^2c^2-4a^2d^2-4b^2c^2-4b^2d^2
= -4a^2d^2 - 4b^2c^2
= -4(a^2d^2+b^2c^2)
-4(a^2d^2+b^2c^2)<0
therefore b^2-4ac has no real roots.....
PLS MARK IT AS BRAINLIEST.... ;-D
2)
b*2 -4ac
=(2ac+2bd)^2-4(a^2+b^2)(c^2+d^2)
=4a^2c^2+4b^2d^2-4a^2c^2-4a^2d^2-4b^2c^2-4b^2d^2
= -4a^2d^2 - 4b^2c^2
= -4(a^2d^2+b^2c^2)
-4(a^2d^2+b^2c^2)<0
therefore b^2-4ac has no real roots.....
PLS MARK IT AS BRAINLIEST.... ;-D
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pls mark my ans as brainliest *_*
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