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secondary 4 | A Maths
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I need help for b（ii）！thankyou！
Date Posted: 4 years ago
Views: 372
Let me try. My plan is to obtain 50 from 25 and use 120 - 50 = 70, since 120 is the obtuse version of a special angle.
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If I can find a more efficient method, I try and obtain it.
Date Posted:
4 years ago
done
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Alternative idea, but I still do not like the final form. I find it ridiculous that this question made it to an exam paper (the font of the words used suggest that the question comes from an exam paper).
Date Posted:
4 years ago
Thankyou！！
We can use the tangent addition identity to solve the question easily.
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An alternative approach.
Date Posted:
4 years ago
Omg I forgot that 70 - 25 = 45.
I went to look for all other combinations but not this one.
I went to look for all other combinations but not this one.
Haha we are, after all, just humans.
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