Question
In dryland agriculture, which cropping technique helps
in reducing the length of the growing season by overlapping the sowing of a succeeding crop into the standing main crop?Solution
Relay cropping (also called utera or paira cropping) involves sowing the next crop before the harvest of the standing crop. It uses residual soil moisture and minimizes turnaround time between crops.
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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