Question

Among the following functions defined on R into R, the constant function is (JEE MAIN-2017)
$1)3 \div 5 + 4sin3x$
$2)1 \div 2 - cos3x$
$3) cos^2x + cos^2(x + \pi \div 3) + sinx \times sin (x + \pi \div 3)$
$4)15 \div 3 sinx + 4cosx +10$



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Answer 1

Answer:

Multiplicative inverse is the opposite reciprocal of a number such that the product of the number and it's reciprocal or multiplicative inverse is 1.