Which of the following is true?
1 answer:
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Step-by-step explanation:
Use Sine rule.
Angle A + angle B + angle C = 180 (sum of angles in triangle)
Angle A + 90 + 42 = 180
Angle A + 132 = 180
Angle A = 180 - 132
= 48
Answer:
Step-by-step explanation:
37) Take two point from the line.
(2 , 0) & (0,4)
Slope = (-2)
38) (7 , 0) & (3 , 2)
39) The line is parallel to x-axis and so its slope is 0
Slope = 0
40) The line is parallel to y-axis and so its slope is undefined
Slope = undefined
Answer:
Your answers are correct.
Step-by-step explanation:
The equality will be true for odd multiples of π/4, so the last two choices will not show the expression to be <em>not</em> an identity.
