Statements:
No tyre is metal.
No steel is aluminium.
Only a few aluminium are copper.
All steel are metal.
Conclusions:
I. All copper being metal is a possibility.
II. All aluminium being copper is a possibility.
III. No steel is copper.
No steel is aluminium (E) + Some aluminium are copper (I) → Some copper are not steel (O) + All steel are metal (A) → All copper may be metal (A). Hence conclusion I follows but conclusion III does not follow. Only a few aluminium are copper → Some aluminium are copper (I) and Some aluminium are nor copper (O). Hence conclusion II does not follow.
Which of the following is an anti-derivative of cos 2x.