Prove that: tan²A -tan²B = {sin(A+B).sin(A-B)}/ cos²A.cos²B   Answer: Okay, so this question is kind of irritating one because it has so much repeated processes in the solution. But don't worry. We are here to help you. First of all, you need to know the formula of Compound Angles to start the solution as given sin(a+b) …

If tan(a+b)= x and tan(a-b) = y, find the values of tan2a and tan2b. answer: When tan(A+B) = x and tan(A-B) = y, find the values of tan2A and tan2B. You also need to remember the given formulas for the process. This is how you find the values of tan2A and tan2B from tan(A+B) and tan(A-B). #SciPiTutor #CompoundAng…

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Find the value of tan75°. Answer: You need to know these following things to be able to solve such questions and get the value of given compound angles. #SciPiTutor #CompoundAngles #Trigonometry #Mathematics

Find the value of sin105°. Answer: You need to know these following things to be able to solve such questions and get the value of given compound angles. FAQs Evaluate sin135° Evaluate cosec(-1485°) Evaluate sin15° Evaluate cos15° Evaluate tan15° Evaluate cot15° Evaluate tan75° Evaluate sin105° Expand cot…

Find the value of cos15°. Answer: You need to know these following things to be able to solve such questions and get the value of given compound angles. #SciPiTutor #CompoundAngles #Trigonometry #Mathematics

Find the value of tan15°. Answer: You need to know these following things to be able to solve such questions and get the value of given compound angles. #SciPiTutor #CompoundAngles #Trigonometry #Mathematics

Find the value of sin15°. Answer: Related Solutions: sin105° sin135° You need to know these following things to be able to solve such questions and get the value of given compound angles. #SciPiTutor #CompoundAngles #Trigonometry #Mathematics

Compound Angles Value s o f some angles are already known to us through the value table i.e. 0 ° , 30 ° , 45 ° , 60 °  and 90 ° . But, there are many more angles whose values are not directly indicated by the value table. And value of those angles can be obtained by adding or subtracting the values of two kn…