Q24 of 40 Page 1

If tan θ = 3/4 find the value of

OR


If tan θ = √3, find the value of


Given

Dividing numerator and denominator by cos2θ



OR


Given tanθ =


tanθ = tan60


⇒ θ = 60°


Now,


Put value of θ in above expression




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22

Read the following passage and ans the questions given at the end:

Students of Class XII presented a gift to their school in the form of an electric lamp in the shape of a glass hemispherical base surmounted by a metallic cylindrical top of same radius 21 com and weight 3.5 cm. the top was silver coated and the glass surface was painted red.


(i) What is the cost of silver coating the top at the rate of ₹ 5 per 100 cm2?


(ii) What is the surface area of glass to be painted red?


 23

Find the 11th term from the last term (towards the first term) of the AP 12,8,4, …., -84.

OR


Solve the equation:


1+5+9+13+… +x=1326


 25

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 26

Two dice are thrown together once. Find the probability of getting a sum of more than 9.