Exercise 3.2
Find the values of other five trigonometric functions in Exercises 1 to 5.
∵ x lies in third quadrant
∴ tan and cot are positive in the third quadrant but remain all trigonometry ratios are negative;
So we have all trigonometry ratios,
∵ x lies in second quadrant
∴ sin and cosec are positive in the second quadrant but remain all trigonometry ratios are negative;
So we have all trigonometry ratios,
∵ x lies in third quadrant
∴ tan and cot are positive in the third quadrant but remain all trigonometry ratios are negative;
So we have all trigonometry ratios,
∵ x lies in fourth quadrant
∴ cos and sec are positive in the fourth quadrant but remain all trigonometry ratios are negative;
So we have all trigonometry ratios,
∵ x lies in second quadrant
∴ sin and cosec are positive in the second quadrant but remain all trigonometry ratios are negative;
So we have all trigonometry ratios,