Samriddhi95 Samriddhi95

22-11-2020
Mathematics

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PLEASE! ANSWER THIS! HELP! PLEASE!!!!!!!!!!!!!!

c. Expand: (tan(theta) - 1)^3

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braedintabler braedintabler

23-11-2020

Answer:

(tan(theta)-1)^3

= (tan(theta)-1)(tan(theta)-1)(tan(theta)-1)

= (tan^2(theta)-2tan(theta)+1)(tan(theta)-1)

= tan^3(theta)-2tan^2(theta)+tan(theta)-tan^2(theta)+2tan(theta)-1

= tan^3(theta)-3tan^2(theta)+3tan(theta)-1

Hope this helps :)

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