Prove that (cos A + sin A – 1)/(cos A – sin A + 1) = cosec A – cot A
The value of (1/sec²A + 1/cosec²A) is :
Prove the following trigonometric identity : (sin A – cosec A) (cos A – sec A) = 1/(tan A + cot A)
Rahim and Nadeem are two friends whose plots are adjacent to each other. Rahim's son made a drawing of the plots with necessary details. It is decided that Rahim will fence the triangular plot ABC and Nadeem will fence along the sides AF, FE and BE. Observe the diagram carefully and answer the following questions : (Use √2 = 1.41 and √3 = 1.73)
If sin A = cos A, then (1 – tan A)/(1 + tan A) is equal to
If sec A = 25/7, then find the value of cosec A and tan A.
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