Question

please help me i want help​

Answer 1

8) a²-b²=(2+√5/2-√5)²-(2-√5/2+√5)²

=(4+5/4-5)-(4-5/4+5)

=9/9-9/9

=1-1=0

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9)Let x=0.0032-(1)

Now,multiply equation 1 by 100:

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100x=0.32-(2)

Or

100x=0.323232...-(3)

Now multiply equation 3 by 100:

10000x=32.323232...-(4)

Now subtract equation 3 from 4:

10000x=32.323232...

00100x=00.323232...

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9900x=32

x=32/9900

x=4/2475

10) Multiply karne ke badd ye answer aayega ok,

(1×7/7³×5-³)³/²

Please mark as brainliest answer it is helpful.