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1. Real Numbers
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Q6 of 54 Page 22

If then find the value of


⇒


⇒ [∵] [∵]


Remove log from both sides


⇒


⇒ = xy


⇒ x2 + y2 + 2xy = 9xy


⇒ x2 + y2 = 7xy


Divide by both sides


⇒


More from this chapter

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4

Expand the following.

(i) log1000


(ii)


(iii) logx2y3z4


(iv)


(v)

5

If x2 + y2 = 25xy, then prove that 2 log(x + y) = 3log3 + logx + logy.

7

If (2.3) x = (0.23) y = 1000 then find the value of

8

If then find the value of x.

Questions · 54
1. Real Numbers
1 1 1 2 3 4 5 1 2 3 4 5 6 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 3 4 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 2 3 4 5 6 7 8 9 9
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