IGNOU MST 1 2018 - State whether the following statements are True or False. Give reason

Question

State whether the following statements are True or False. Give reason in support of your answer:

a) Which term of the A.P. $20, 19\frac{1}{2},19, 18\frac{1}{2},18, 17,\frac{1}{2}, .....$ is the first negative term ?

(b) $\frac{dy}{dx}$ of the functions x = 5 + 3t² , y = log t is 6.

c) The rule f shown in the following figure is a function.

Image ignouacademy-com--p-ignou-94771

d) Measurement of blood group comes under ordinal scale of measurement.

e) Pie diagram/chart is used when the change in the values of the components of one variable is important.

17 Mar 2018

Answer :

Word Count : 165

(a) True

a = 20

d = 1/2

as ,

a_{n = a + (n-1) d}

$\Rightarrow$ -1/2 = 20 + (n-1) $\times$ 1/2

$\Rightarrow$ (n-1) = 2

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