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The angle of elevation of a top of a building froma
Roint h metres above the surface of a sea is L. and the
angle of dep

By Kennedy

The angle of elevation of a top of a building froma
Roint h metres above the surface of a sea is L. and the
angle of depression of its reflection in sea B. Prove
that the height of the building above the sea is )
tanß & tond
tanß + tand​

About the author
Kennedy

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what is the pattern​

the upper limit of a class is same as the lower limit of next class then it is an exclusive class true or false​

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