Item 3 Is this function linear or nonlinear? y=2x²−4 linear nonlinear
2 answers:
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In any right triangle ABC, with right angle A we have the following:
and
.
This means that the sine of a non 90° angle, is equal to the cosine of its complementary angle.
Thus,
.
(Take a look at the picture. From the definition of trigonometric ratios in right triangles we have :
and
)
Answer: 19/20
and
This means that the sine of a non 90° angle, is equal to the cosine of its complementary angle.
Thus,
(Take a look at the picture. From the definition of trigonometric ratios in right triangles we have :
and
Answer: 19/20