DEF is right angle at E. if m F = 300 Then Find the value of $$ left – McqOptions

MCQOPTIONS

1.	DEF is right angle at E. if m F = 30⁰Then Find the value of $$ left( cos D - {1 over 2} right)$$ = ?
A.	$$-{1 over2}$$
B.	$${{6}- sqrt{1}} over 3 $$
C.	$${ sqrt{2}- 2} over 2 sqrt{2} $$
D.	$${ sqrt{2}- 2} $$
Answer» D. $${ sqrt{2}- 2} $$

Discussion

No Comment Found

Related MCQs

<p>In a triangle ABC, ABC = 75<sup>0</sup> and ABC = <sup>0</sup>/4, The circular measure of BAC is :</p>
<p>A water tank is 15 meter long. 10 meter wide and 3 meter deep. The total cost to repair its four walls and bottom at the rate of 24 rupees per square meter is? </p>
<p>The measure of the angles of a triangle are in the ratio 2 : 7 : 11. Measures of angles are : </p>
<p> DEF is right angle at E. if m F = 30<sup>0</sup><sup> </sup>Then Find the value of $$ left( cos D - {1 over 2} right)$$ = ?</p>
<p> ABC is right angle at B. If m C = 45<sup>0</sup> Then find the value of ( cosec A - 3) = ?</p>
<p>In ABC measure of angle B is 90<sup>0</sup>. If cos A = $$ 5 over 13 $$ and AB = 10 Then what is the length of side BC ?</p>
<p>PA and PB are two tangents to a circle with center o from a point P outside the circle. A and B are points on the circle. If OAB = 35 than APB is equal to: </p>
<p>A hemispherical bowl of internal diameter 54 cm contains a liquid. The liquid is to be filled in cylindrical bottles of radius 3 cm and height 9 cm, then find the number of bottles that can be filled?</p>
<p>The length, breadth and height of a hall are 144 m, 180 m and 384 m respectively. The length of the longest scale that can measure the three dimensions of the hall exactly is:</p>
<p>A copper wire is bent in the form of an equilateral triangle and has area 121 3 cm<sup>2</sup> . If the same wire is bent into the form of a circle, the area (in cm<sup>2</sup>) enclosed by the wire is (Take pi= 22 /7)</p>