cosθ/(1-sinθ) is equal to
If x=acosθ and y=bcotθ ,then (ax^-1-by^-1)(ax^-1+by^-1) is equal to
Consider the followng statements
1.(1+tan²θ)/(1+cot²θ)=[(1-tanθ)/(1-cotθ)]² is true for all 0<θ<π/2,θ≠π/4
2.cotθ=1/tanθ is true for θ=45° only
Which of the above statement is/are correct?
20% of a number when added to 20 becomes the number itself,then the number is
Which one of the following is correct?
The sum of first 47 terms of the series (1/4+1/5-1/6-1/4-1/5+1/6+1/4+1/5-1/6... is