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Frequently Asked NDA Exam Pattern, NDA Questions with Answers Page 36

(#M40026654) NDA QUESTION Mental Ability Keep an EYE

The sum of the direction tan of z-axis is

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(#M40026653) NDA QUESTION Mental Ability Keep an EYE

The sum of the direction sines of y-axis is

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(#M40026652) NDA QUESTION Mental Ability Keep an EYE

The sum of the direction sines of x-axis is

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(#M40026651) NDA QUESTION Mental Ability Keep an EYE

The sum of the direction sines of z-axis is

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(#M40026650) NDA QUESTION Mental Ability Keep an EYE

The sum of the direction cosines of y-axis is

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(#M40026646) NDA QUESTION Mental Ability Keep an EYE

A man walks 10m towards a lamp post and notices that the angle of elevation of the top of the post increases
from 30º to 45º. The height of the lamp post is

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(#M40026645) NDA QUESTION Mental Ability Keep an EYE

If 




+
−
2
1
1 a
a 2 sin + sin–1 




1+ b2
2b = 2 tan–1x, then x is equal to

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(#M40026643) NDA QUESTION Mental Ability Keep an EYE

If d is the number of degrees contained in an angle, m is the number of minutes and s is the number of
seconds, then the value of (s – m)/(m – d) is

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(#M40026642) NDA QUESTION Mental Ability Keep an EYE

What is the value of (sin^4θ – cos^4 θ + 1) cosec^2θ

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(#M40026641) NDA QUESTION Mental Ability Keep an EYE

What is the value of (sin4θ – cos4 θ + 1) cosec2θ

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