# Maths help

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#1
Can I get help with question 2iii, 3 and 5b.
Last edited by username5095322; 9 months ago
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9 months ago
#2
2(iii) sec(ฮธ)=5cosec(ฮธ)
Rewrite as 1/cos(ฮธ) = 5/sin(ฮธ)
cross multiply, tan(ฮธ)=5, then solve...

3. 2cot(ฮฑ)=1, 2/tan(ฮฑ)=1, therefore tan(ฮฑ) = 2
to find tan ฮฒ, replace sec^2(ฮฒ) by (1+tan^2(ฮฒ)), solve... tan(ฮฒ) = 5

5b.Rewrite cot(ฮฒ) as 1/tan(ฮฒ) and solve
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