Prove that 1 + cosA/1- cosA = tan^2A/SecA-1 Class 10 | trigonometry

 

In a Trapezium ABCD, E and F be the Midpoints of the diagonal's AC and BD respectively, the EF= | Class 9 | Midpoint theorem

 

A person invests ₹ 5,000 for three years at a certain rate of interest compounded annually. At the end of two years this sum amounts to ₹ 6,272. Calculate : (i) the rate of interest per annum. (ii) the amount at the end of the third year. Class 9 | ICSE | Compound Interest

 

At what rate per cent compound interest, does a sum of money become 1.44 times of itself in 2 years ? Class 9 | ICSE | Compound Interest

 

Answer: 20%

Prove that cos theta . cot theta/1+sin theta = cosec theta -1 | Class 10 Trigonometry | ICSE