Trigonometry iit jee maths lecture 27.
Questions on sin3A, cos3A & tan3A.
Find value of 8(sin40)^3 - 6 sind40. Solve this questions with the help of trigonometric formulae. Instead of finding value of sin40, try to convert this equation in the form of sin3A and use value of sin120 instead of sin40.
These type of questions are asked in iit jee mains and advanced exam. Lectures on trigonometry also provide important questions which may be asked in class 11 & 12 cbse exams.
Step by step solutions for trigonometric questions.
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