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Indian Online Education
Indian Online Education is a page where anyone can ask any kind of questions related to mathematics of any class.
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https://www.youtube.com/watch?v=gYKix9XNPxw
If CosecA + CotA = p then prove that CosA = (p^2 - 1)/(p^2 +1)
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https://www.youtube.com/watch?v=cGrv-1q_H9c
If a^2 , b^2 , c^2 are in A.P. then prove that a/(b+c) , b/(c+a) , c/(a+b) are in A.P.
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https://www.youtube.com/watch?v=ovdFFGv-824
If aSinQ + bCosQ = c then prove that aCosQ - bSinQ = √(a^2 + b^2 - c^2)
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https://www.youtube.com/watch?v=S9cdWldagrw
Split 207 into 3 parts such that these are in A.P. and product of two smaller part is 4623.
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