For the following questions answer them individually
In a certain code language, 'TELEPHONE' is written as 'ENOHPELET'. How is 'ALIGATOR' written in that code?
If $$\tan A + \tan B = a$$ and $$\cot A + \cot B = b$$, then $$\frac{1}{a} - \frac{1}{b}$$Â is equal to .......
Which of the following statements is FALSE?
1. Focal length of a convex lens is positive.
2. Focal length of a concave lens is negative.
3. All measurements to the right of the optic centre are positive.
4. All measurements to the left of the optic centre are positive.
Five friends A, B, C, D and E are sitting on a benchfacing north. A is sitting next to B. D is sitting next to C. D is not sitting with E. E is on the left end of the bench. C is on the second position from theright. A sits to the right of B. A and C aresitting together.
Whoissitting in the middle of the bench?
