cofused about some topics
Asked by Albert Mathew Mathew
21st July 2013,
9:56 PM
Answered by Expert
Answer:
1. You will have to remember this. So, all functions are positive in the first quadrant, only sin and cosec are positive in the second quadrant, all functions are negative in the thrid quadrant and only cos and sec are positive in the fourth quadrant.
2. sin(x) being a symmetrical function can be plotted easily from pi/2 to pi.
sinpi = sin0 = 0
sinpi/2 = 1
sin 5pi/6 = sin pi/6 = 1/2
sin 2pi/3 = sin pi/3 = root(3)/2
Answered by Expert
26th July 2013,
5:23 AM
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