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4. 15.8m
 

Q1: Find the principal and general solutions of the following equations:

\tan x= \sqrt{3}

 

 

Use Euclid’s algorithm to find the HCF of 4052 and 12576.

Use Euclid’s division algorithm to find the HCF of : 135 and 225

Use Euclid’s division algorithm to find the HCF of :

196 and 38220

Show that any positive odd integer is of the form 6q + 1, or 6q + 3, or 6q + 5, where q is
some integer.

An army contingent of 616 members is to march behind an army band of 32 members in a parade. The two groups are to march in the same number of columns. What is the maximum number of columns in which they can march?

Use Euclid’s division lemma to show that the square of any positive integer is either of the form $3m$ or $3m+1$ for some integer $m$.
[Hint : Let $x$ be any positive integer then it is of the form $3q,3q+1$ or $3q+2$. Now square each of these and show that they can be rewritten in the form $3m$ or $3m+1$.]

Q1. Why do organisms take food?

Q2. Distinguish between a parasite and a saprotroph.

 

 

 

Q3. How would you test the presence of starch in leaves?

Q4. Give a brief description of the process of synthesis of food in green plants.

xyz test

What is a cell?

what is a cell?

True or False, Different fabrics have different properties which define their usage.

What is the unit of speed?

What is the vale of acceleration due to gravity of earth?

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