How do I solve for this?

Junguo93

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Jul 14, 2019
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what is the step-by-step manipulation done to obtain the final answer here?

12901
 

Subhotosh Khan

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what is the step-by-step manipulation done to obtain the final answer here?

View attachment 12901
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Please post the "exact" and "complete" problem - as it was presented to you.
 
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