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te the conjugate irrational number of each of the15A 12-14 + 11J2+104+ V1ia) 12+1 |
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Answer» c) 5/4+V11 x 4- V11/ 4 - V11= 5(4-V11)/(4-V11)^2= 20-5V11/16+11-2(4V11) = 20-5V11/27-8V11 ; d) V2-1/ V2+1 × V2-1/V2-1= ( V2-1)^2/(V2-1)( V2+1) = 2+1+2V2/2-1=3+2V2/1 5/ 4 + V11 x 4- V11/ 4- V11=5(4-V11)/( 4)^2-(V11)^2= 5( 4 - 8V11)/16-11= =5( 4- 8V11)/5=4-8V11. V2-1/V2+1 × V2-1/V2-1 = ( V2-1)^2/( V2)^2-(1)^2=2+1-2V2/2-1= 3-2V2/1 correct answer is(i) 20 -5√11/5(ii) 3 -2√2 |
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