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Trigonometry - Jamb Mathematics Past Questions and Answers

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Jamb Mathematics Past Questions

Question 76:


A man 40 m from the foot of a tower observes the angle of elevation of the tower to be 30o. Determine the height of the tower.

A. \(\frac{40\sqrt{3}}{3}m\)
B. 20 m
C. 40√3 m
D. 40 m


Question 77:


Find the value of \(\frac{tan 60^o - tan 30^o}{tan 60^o + tan 30^o}\)

A. \(\frac{4}{\sqrt{3}}\)
B. \(\frac{2}{\sqrt{3}}\)
C. 1
D. \(\frac{1}{2}\)


Question 78:


If sinθ = 3/5. Find Tanθ

A. 3/4
B. 3/5
C. 2/5
D. 1/4


Question 79:


If the hypotenuse of a right angle-triangle isosceles triangle is 2cm. What is the area of the triangle?

A. 1/√2 cm2
B. 1 cm2
C. √2 cm2
D. 2√2 cm2


Question 80:


Find the value of sin 45o - cos 30o

A. \(\frac{2+\sqrt{3}}{4}\)
B. \(\frac{\sqrt{2}+\sqrt{3}}{4}\)
C. \(\frac{\sqrt{2}+\sqrt{3}}{2}\)
D. \(\frac{\sqrt{2}-\sqrt{3}}{2}\)






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