यदि `a/(q-r)+b/(r-p)-c/(p-q)` तो `pa+qb+rc` का मान क्या होगा?

If a/(q -r) = b/(r-p) = c/(p-q) , then prove that a + b + c = 0 =pa+ qb + rc .

If p+q = 7 and pq=5, then the value of p^3+q^3 is : यदि p+q = 7 तथा pq = 5 है, तो p^3+q^3 का मान क्या होगा ?

p^3+q^3+r^3-3pqr=4 . lf a=q+r, b=r+p and c=p+q, then what is the value of a^3 + b^3 + c^3 -3abc ? p^3+q^3+r^3-3pqr=4 है। यदि a=q+r,b=r+p तथा c=p+q, है, तो a^3 + b^3 + c^3 -3abc का मान क्या है?

If x = 2 - p , then x^3+6xp+p^3 , is equal to: यदि x = 2 - p है, तो x^3+6xp+p^3 का मान क्या होगा ?

If Sec A =5/3 , then what is the value of Cot A? यदि Sec A =5/3 , तो Cot A का मान क्या होगा ?

If secA + tanA =a, then the value of cosA is यदि secA + tanA =a हो, तो cosA का मान क्या होगा?

(b) If (log a)/(q-r)=(log b)/(r-p)=(log c)/(p-q) , prove that a^(p)b^(q)c^(r)=1