Question

The rod AB of a TV disc antenna is fixed at right angle to the wall and a rod BC is supporting the disc as shown in the figure. AB =4 cm and BC = 8am.

Now, answer the following:



i) The value of tan theta is:

a) 0 b) 1/2 c) 1/√3 d) 7√5

ii) The value of theta is:

a) 30degree b) 45degree c) 60degree d) 90degree

iii) The value of sin sq C + sin sq ?B is

a) 0 b) 1 c) 2 d) 3
IV) The value sinA+Tan B is
a) 1+√3 b) √3-1 c) 1-√3 d) non of these
v) The value Of 9Cot sq theta -3cosec sq theta
a) 9 b) -9 c) 1 d) non of these




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Answer 1

a) 30degree b) 45degree c) 60degree d) 90degree?