Binomial theorem/Series | iTeachChem | Page 1

empty helm Jan 16, 2025, 12:19 AM

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I need help with questions 7 and 18.

How does one solve these? I multiplied (1+x)³⁰ and (1-x)³⁰ for Q7, but got stuck midway. For Q18, I got 0, but the answer is -30C15. Idk where I went wrong.

indigo orchidBOT Jan 16, 2025, 12:19 AM

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Couldn't find an attached image in the last 10 messages.

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empty helm Jan 16, 2025, 12:20 AM

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Yes I marked the answer key wrong as well in the beginning

shadow inletBOT Jan 16, 2025, 12:20 AM

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Note for OP

+solved @user1 @user2... to close the thread when your doubt is solved. Mention the users who helped you solve the doubt. This will be added to their stats.

grizzled crest Jan 16, 2025, 1:23 AM

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indigo orchid