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Tuesday, June 17, 2025
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Complete Lecture
Conceptwise Videos
Deriving the formula for tan (x+y), tan (x-y)
Deriving the formula for tan 2x, tan 3x
Deriving the formula for cot (x+y), cot (x-y)
Deriving the formula for cot 2x, cot 3x
Introducing cosec x
Introducing sec x
Solving some problems
Solving some tricky problems
Videos Reference Material
Trigonometric Functions Lec 04
Content Contributed By
Sunil Dhaka, Mathematics & Statistics, IIT Kanpur
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