CBSE Class 11-science - Introduction to Trigonometric Functions Videos
Trigonometric identities and problems
Fundamental trigonometric identities and problems based on them. Sign Convention of trigonometric ratios in various quadrants.
clear this doubt
- If A+B+C=pi , then equality of equation (1/2)(cosA cosB + cosB cosC + cosC cosA) must hold: a) <= 3/2. b) >=(-3) c) <=3/8 d) >=(-1)
Solve question no-4
- If the value of cosec x repeats after an interval of 2,then what is the value of cosec(7/6)?
- Find the value of -cos(30)
- What is trigonometry
- in a right angled triangle the hypotenuse is 2root2 times the perpendicular drawn from the opposite vertex then then other acute angles of triangle are
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