stuck on 6b | Revision Server | Page 1

grim trellis Oct 5, 2023, 7:19 PM

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expand the LHS

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u get sec^20 -2sec0tan0 tan^20

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use the formula that sec^2-tan^2=1

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so its just 1-2sectan

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sectan is (1/cos)(sin/cos)

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which is sin/cos^2

prisma torrent Oct 5, 2023, 9:43 PM

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It's not really working

prisma torrent Oct 5, 2023, 10:21 PM

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I have been trying for an hour to make left side into right side but am just not able to do it

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I have managed to prove right side into left one though

vale ginkgo Oct 5, 2023, 11:07 PM

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just do it in reverse then inni

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@grim trellis hopefully this helps

prisma torrent Oct 6, 2023, 8:03 AM

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prisma torrent Oct 6, 2023, 8:04 AM

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Part a which I did

prisma torrent Oct 6, 2023, 8:04 AM

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I can feel you did this effortlessly

vale ginkgo Oct 6, 2023, 10:23 AM

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u will improve a lot from y12 to y13 so dw

prisma torrent Oct 6, 2023, 4:01 PM

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Well... I am in year 13 just started a month ago. I could have done that part as well though but I havent covered this topic entirely in school

#stuck on 6b