Question
The difference between the value of the number
increased by 10% and the value of the number decreased by 20% is 72. Find the number.Solution
Let the number be x According to the question x Ć Ā 110/100- x Ć Ā 80/100=72Ā 110x - 80x = 7200 30x = 7200 x = 240
What is the simplified value of the given expression?
3(sinĀ² 30Ā° + sinĀ² 60Ā°) + 6sin 45Ā° - (3sec 60Ā° + cot 45Ā°)
- Find the simplified value of the expression:sin 2 45 o Ā + sin 2 60 o Ā - (1/3) X tan 2 60 o
If θ is a positive acute angle and cos² θ + cosā“θ = 1, then the value of tan²θ + tanā“θ is?
Find the value of the given trigonometric expression:
(sin 15Ā°cos 75Ā° + cosĀ²15Ā°) Ć sin 30Ā° + (cos 60Ā°tan 45Ā°) Ć sec 60Ā°
...Find the maximum value of (20sin A + 15cos A).
Find the exact value of cos120Ā°
- If sin(A + B) = ā3/2 and cos(A + 2B) = 1/2, where 0Ā° < A, B < 90Ā°, then find the value of tan(2A).
If cosec (2A + B) = 2 and cosec (A + B) = 1, find the value of (3A ā B).
A tower is 60 meters high. From a point on the ground, the angle of elevation of the top of the tower is 30Ā°. Find the distance of the point from the b...
- Find the maximum value of (12sin A + 16cos A).
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