fatimalandau8923 fatimalandau8923

26-03-2024
Mathematics

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A line makes the same angle θ with each of the x and z axis. If the angle β , which it makes with y−axis is such that sin²β=3sin²θ then cos²θ equals
a. 1/5
b. 2/3
c. 3/5
d. 2/5

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