decribe ASTC rule in trigonometry
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ASTC
A means all
S means sin
T means tan
C means cos
by the role of ASTC,in the 1st quadrent all values are +,in the second quadrent sin and cosec are +,in 3rd quadrent tan and cot are + and in 4th quadrent cos and sec are +ve
A means all
S means sin
T means tan
C means cos
by the role of ASTC,in the 1st quadrent all values are +,in the second quadrent sin and cosec are +,in 3rd quadrent tan and cot are + and in 4th quadrent cos and sec are +ve
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