Advanced Examples on Monotonicity (Part-2) (in Hindi)

Ayush Dixit

4 months ago

Sir I am unable to understand question of JEE MAIN 2008 that how many real solutions does the equation X( to the power 7)+14X( to the power 5)+16X( to the power 3)+30X-560=0 have?? because sir answer of this question would be 7 as no.of roots are equal to the degree of the polynomial which is given as 7 but actually the answer is 1.HOW??