Neet 2017
Asked by Anushka Agarwal · 6 years ago
If θ₠and θ₂ be the apparent angles of dip observedin two vertical planes at right angles to each other,then the true angle of dip θ is given by (1) cot²θ = cot²θ₠+ cot²θ₂ (2) tan²θ = tan²θ₠+ tan²θ₂ (3) cot²θ = cot²θ₠– cot²θ₂ (4) tan²θ = tan²θ₠– tan²θ₂
Please explain it in a really easy way.. This question is really hard for me​