Question

(i) Find the meanings of the given words and phrases (look up the words underlined in the phrases).
(a) naturalised U.S. citizen ———————————
(b) space ——————————————————————
(c) frontiers of space ———————————————
(d) aboard ——————————————————————
(e) lift off (How is it different from ‘take off’?) ——————————————————————————
(f) crew ———————————————————————​

Answer 1

Answer:

$\begin{gathered}\begin{gathered}\begin{gathered}\sf Trigonometry\: Table \\ \begin{gathered}\begin{gathered}\begin{gathered}\begin{gathered}\boxed{\boxed{\begin{array}{ |c |c|c|c|c|c|} \bf\angle A & \bf{0}^{ \circ} & \bf{30}^{ \circ} & \bf{45}^{ \circ} & \bf{60}^{ \circ} & \bf{90}^{ \circ} \\ \\ \rm sin A & 0 & \dfrac{1}{2}& \dfrac{1}{ \sqrt{2} } & \dfrac{ \sqrt{3}}{2} &1 \\ \\ \rm cos \: A & 1 & \dfrac{ \sqrt{3} }{2}& \dfrac{1}{ \sqrt{2} } & \dfrac{1}{2} &0 \\ \\ \rm tan A & 0 & \dfrac{1}{ \sqrt{3} }&1 & \sqrt{3} & \rm \infty \\ \\ \rm cosec A & \rm \infty & 2& \sqrt{2} & \dfrac{2}{ \sqrt{3} } &1 \\ \\ \rm sec A & 1 & \dfrac{2}{ \sqrt{3} }& \sqrt{2} & 2 & \rm \infty \\ \\ \rm cot A & \rm \infty & \sqrt{3} & 1 & \dfrac{1}{ \sqrt{3} } & 0\end{array}}}\end{gathered}\end{gathered}\end{gathered} \end{gathered}\end{gathered}\end{gathered}\end{gathered}$

Answer 2

Answer:

Explanation:

(a) Naturalized U. S. citizen – A Naturalized U. S. citizen is the one who is not a citizen of U. S. (non-citizen) but has acquired citizenship lawfully.

(b) Space – it refers to the physical universe present beyond the earth’s atmosphere

(c) Frontiers of space – The word frontier refers to the boundary separating two different areas. Frontiers of space refers to the separating boundary between the earth and the space

(d) Aboard – aboard refers to the action of getting on or into a particular vehicle (a ship, aircraft, train or any other vehicle)

(e) Lift off (How is it different from ‘take off’?) – Take off refers to the act of being transported by air (airborne). Lift off refers to the special act of taking off vertically associated with an aircraft, spacecraft or a rocket.

(f) Crew – it refers to a set of people (a group) who work on and operate a ship, spacecraft, aircraft etc.