SSC CGL 2020 Tier 2 – Trigonometry All Solved Questions
Introduction to Trigonometry
Trigonometry words comes from Greek words (Trigonon + Metron). Which means measuring triangles. As the name might suggest, is all about triangles.
Hence Trigonometry is one of the branches of mathematics which deals with the relationship between the sides of a triangle (right triangle) with its angles. There are 6 trigonometric functions for which the relation between sides and angles are defined – the 6 trigonometric functions are – sin, cos, tan, cosec, cot, sec
More specifically, trigonometry is about right-angled triangles, where one of the internal angles is 90°. Trigonometry is a system that helps us to work out missing or unknown side lengths or angles in a triangle.
Basic Formulas
How to Determine all the Values of Trigonometric Functions ( त्रिकोणमितीय फलन ) ?
Best trick to Remember all the 30 Values of Trigonometric Functions ( त्रिकोणमितीय फलन ), watch the video below
पंडित बद्री प्रसाद हर हर भोले
Pandit Badri Prasad
Har Har Bhole
WHERE,
P = PERPENDICULAR ( लम्ब )
B = BASE (आधार)
H = HYPOTENUSE ( कर्ण )
sin (90-θ)= cosθ
Put θ = 20°
sin 70°=cos 20°
tan (90-θ) = cotθ
Put θ = 35°
tan 55°=cot 35°
cosec (90-θ)= sec θ
Put θ = 36°
cosec 54°=sec 36°
Important Conclusion from Above formulas
All Questions FROM SSC CGL Mains Exam
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