Q3.

The value of the product sin 90°. sin 89°.sin88°.sin 87° ......sin 0° is:

Q4.

In this question, a group of numbers/symbols is coded using letters as per the table given below and the conditions which follow. The correct combination of codes following the condition is your answer.

Conditions: 

1. If the first element is a symbol and the last is a number, the first and last elements are coded as ¥ and ¥, respectively.
2. If the first element is an odd number and the last is an even number, the codes for these two are to be interchanged.
3. If both second and third elements are perfect squares, the third element is to be coded as the code for the second element.

How will '5 < = 2 6' be coded?

Q5.

Find the length of the side of an equilateral triangle, if its area is 4√3 sq. unit.