If p = 4, q= 3 and r = -2 find the value of `p^(2)+q^(2)-r^(2)`

If p = -2, q = - 1 and r = 3, find the value of (i) p^(2) + q^(2) - r^(2) (ii) 2p^(2) - q^(2) + 3r^(2) (iii) p - q - r (iv) p^(3) + q^(3) + r^(3) + 3 pqr (v) 3p^(2) q + 5pq^(2) + 2 pqr (vi) p^(4) + q^(4) - r^(4)

If p=4 , q=-3, r=2 find the value of 4p^2+5q-12r

Find the value of (p^(2)+q^(2))/(r^(2)+s^(2)) , if p:q=r:s

Find the value if (p^(2)+q^(2))/(r^(2)+s^(2)) if p:q: : r:s

If p = log_(2a), a, q = log_(3a) 2a and r = log_(4a), 3a , then find the value of qr(2-p).

If cos^(-1)p+cos^(-1)q+cos^(-1)r=pi(0<=p,q,r<=1) then the value of p^(2)+q^(2)+r^(2)+2pqr is

Let R = {(x,y): x, y in Z, y = 2x-4] . If (p,-2) and [4, q^(2))in R , then find the value of p and q