1) Calculate tan θ for triangle below a) 12/13 b) 5/13 c) 5/12 d) 12/7 2) Pythagorean Theorem. “The sum of the squares of the legs of a right triangle equals the square of its hypotenuse." Which of the following the right equation of Pythagorean Theorem Pythagorean Theorem Pythagorean Theorem a) a2 + b2 = c2 b) a2 - b2 = c2 c) a3 + b3 = c3 d) a3 - b3 = c3 3) Solve the trigonometric equation cos 2x+cos x = -1 for 0°≤ x ≤180° a) x=120°, 150° b) x=60°, 120° c) x=90°, 150° d) x=90°, 120° 4) Solve the trigonometric equation tan (x-45°)=1 for 0°≤ x ≤270° a) x=120°, 270° b) x=90°, 270° c) x=90°, 180° d) x=90°, 150° 5) Which of the following is right triangle a) b) c) d) 6) Called the "Father of Trigonometry". Produce the contagent table. Which of the following figures refers to the above statement a) b) c) d) 7) Abu Nasr Mansur find the law of sine as follows: a/sin A = b/sin B = c/sin C a) True b) False 8) Omar Khayyam (1048-1131), combined trigonometry and approximation theory  a) to provide methods for solving trigonometric equations through geometric means b) to provide methods for solving algebraic equations through geometric means c) to solve quadratic equation d) to solve the mathematics question 9) The beginnings of trigonometry can be traced back to (more than 3000 years ago) a) Ancient Egypt   b) Indus Valley civilization c) Babylon d) to Ancient Egypt and Babylon and the Indus Valley civilization 10) Trigonometry comes from the ...... word trigonal which means three angles and metro which means measure a) Greek b) Mesopotamia c) Latin

TRIGONOMETRY

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