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Chapter 2: Q34. (page 105)

Solve the equation. Check your solution.

r0.4=0.8

Short Answer

Expert verified

Solution of given equation isr=0.32.

Step by step solution

01

Step-1- Solve for value of r

r0.4=0.8

Multiplying with 0.4on both sides, we get

r0.4脳0.4=0.8脳0.4r=0.8脳0.4r=0.32

02

Step-2-Verification of our solution

For checking our answer, substitute r=0.32 in given equation r0.4=0.8.

On substituting, we get

r0.4=0.80.320.4=0.80.8=0.8

03

Step-3- Conclusion

Here, both sides of above expression are equal.

So, our answer is true.

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