Question
Which one of the following irrigation methods is most
suitable for sandy soils?Solution
Sandy soils have high infiltration rates. Drip irrigation delivers water slowly and directly to the root zone, minimizing percolation losses and ensuring better water use efficiency in such soils.
tan 4˚ × tan 43˚ × tan 47˚ × tan 86˚ = ?
If sec a + tan a = 4, find the value of sin a.Â
- If X = 15°, find the value of:
sin²(3X) + cos²(4X) - tan²(2X) If sin 23° = `12/13` , then tan 67° = ?
...The Value of (sin38Ëš)/(cos52Ëš)+ (cos12Ëš)/(sin78Ëš)- 4cos²60Ëš is
If A + B = 450 , then the value of 2(1 + tanA) (1 + tanB) is:
Simplify the following trigonometric expression:
14 tan 25° cot 65° − 6 cos 39° sec 51°In an election involving two parties, 16% of the total votes were invalid. One of the candidates received 58% of the valid votes, and the other got 19,0...
If sec2 θ = 4, then find the value of sin2 θ + cosec (90 - θ) where 0o < θ < 90o.
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