Question
sin2 4˚ + sin2 6˚ +
sin2 8˚ + sin2 10˚ + ……… + sin2 86˚ =?Solution
sin 2 4˚ + sin 2 6˚ + sin 2 8˚ + sin 2 10˚ + ……… + sin 2 86˚ = (sin2 4˚ + sin2 86˚)+(sin2 6˚ + sin2 84˚) + .…. + (sin2 44˚ + sin2 46˚) = (sin2 4˚ + cos2 4˚)+(sin2 6˚ + cos2 6˚) + .…. + (sin2 44˚ + co2 44˚) {As sin (90˚ - θ) = cos θ} = (1)+(1) + .…. upto 21 times { As sin2 θ + cos2 θ= 1} = 21 ` ` ` ` ` ` ` ` ` ` ` `
Which Answer Figure will complete the pattern in the figure?
Select the number-pair in which the numbers are similarly related as in the given pair.
345: 144
In the following question, which answer figure will complete the question figure?
Study the given pattern carefully and select the number that can replace the question mark [?] in it?
Select the figure that will replace the question mark (?) in the following figure series.
Which answer figure will complete the pattern in the question figure?
In each of the following questions, select a figure from amongst the four alternatives, which when placed in the blank space of figure (X) would comple...
In each of the following questions which one of the answer figures shall complete the given question figure.
If 923 = 54, 781 = 56, 654 = 120, then 842 = ?
Completion of incomplete Pattern
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