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secondary 3 | A Maths
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Hi! I need help with this qns. Thank you :)
Date Posted: 1 year ago
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hope this helps!
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1 year ago
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Same question type
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part ii
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part iii
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1 year ago
Explanation incase you still need clarification:
Angles A and B are in the same quadrant.
Which quadrant they are in?
They are in the second quadrant.
The reason why both angles A and B are in the second quadrant is because tanB is negative while sinA is positive. By using the ASTC rule, 2nd quadrant is the only quadrant where sin is positive and tan is negative.
Angles A and B are in the same quadrant.
Which quadrant they are in?
They are in the second quadrant.
The reason why both angles A and B are in the second quadrant is because tanB is negative while sinA is positive. By using the ASTC rule, 2nd quadrant is the only quadrant where sin is positive and tan is negative.
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