Question
How many pairs of letters are there in the word
āCARBONATEDā which has as many letters between them (both forward and backward) in the word as in the alphabetical series?Solution
DE and NO are two such pairs, which have as many letters between them as in English alphabetical series.
- If cos2B = sin(1.5B - 36 o ) , then find the measure of 'B'.
If (sin 3A sec 6A = 1) , then what will be the value of cos 6A?
Find the value of the given expression.
2 à (sin 30° + tan 45°)
If 5sin²x + 3cos²x ā 4 = 0, then find the value of sinx, given that 0° < x < 90°.
- Find the value of sin30° + cos 60° + tan45° + cosec²45° + sec²45°.
If cos Īø + sec Īø = ā2, then the value of cos³ Īø+ sec³ Īø is:
If sec²x + csc²x = 10, find the value of tan²x + cot²x.
The angle of depression of two ships from the top of a light house are 45º and 30º. if the ships are 120m on the opposite sides of lig...
Simplify:
8sin 27° sec 63° + 3cot 64° cot 26°