The Elements of Plane Trigonometry |
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1+tan abscissa accuracy algebraic sign angle greater angles less approximate numbers C₁ changes sign Check circle circumference coincidence cologarithm complementary angle computation congruent angles Construct coördinates cos² cosecant cosine cotangent denoted distance divide Draw equal equations EXERCISES Express the following figure find the functions following angles formulas functions of 45 Graphic Solution height hypotenuse initial line Law of Sines Law of Tangents length less than 90 log sin ẞ logarithm mantissa multiplied negative opposite perigon perpendicular plane positive projection quadrant radian radian measure radius ratios right triangle sec² secant second angle sin² sine student subtend subtracted tabular difference tan-¹ tan² tan²x tana tangent terminal line tions trigonometric functions Trigonometric Solution values Verify the following y-projection