Question-10 asked by students on community | Class 10 NCERT Maths @MathsTeacher
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The angle of elevation of cliff from a fixed point is theta .After going up a distance of k metres towards the top of the cliff at an angle of a,it is found that the angle of elevation is alpha.show that the height of cliff is k(cosϕ - sinϕcotα) / cotθ - cotϕ metres.
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