Find the value of if nP1 = 10
1
10
2
5
In a right angled triangle ABC (right angled at B),
the value of tan A ✕ tan C = _______.
If √1369+√0.0615+x=37.25. Find the value of x.
If 3676.48 can be written in expanded form as: 3×10a+b×102+7×10c+6×100+4×10d+e×10−2 . Find the value of a+b−c−d−e.
Find the value of r, if 20Cr+1=20C3r−1