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secondary 3 | A Maths
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Nicole She
Nicole She

secondary 3 chevron_right A Maths chevron_right Singapore

Pls help me with this question. Thank you

Date Posted: 4 years ago
Views: 260
snell
Snell
4 years ago
sin θ = - 1/3 (3rd or 4th quad)

cos θ = 2√2/3 or -2√2/3

hence,
sec θ = 3/(2√2) or -3/(2√2)


tan θ = 1/(2√2) or -1/(2√2)


...

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Chloe Ng
Chloe Ng's answer
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J
J
4 years ago
4th quadrant also possible. There's another set of answers. The x = √8 you put as N.A actually satisfies the 4th quadrant
Eric Nicholas K
Eric Nicholas K
4 years ago
J is correct. The angle of interest can be in the third or the fourth quadrant, so there exist different solutions.