The fall armyworm ( Spodoptera frugiperda ) is a pest that feeds in large numbers on leaves and stems caused major damage recently to the crop of
The fall armyworm, Spodoptera frugiperda, is a lepidopteran pest that feeds in large numbers on the leaves, stems and reproductive parts of more than 350 plant species, causing major damage to economically important cultivated grasses such as maize, rice, sorghum, sugarcane and wheat.
If θ is a positive acute angle and cos² θ + cos⁴θ = 1, then the value of tan²θ + tan⁴θ is?
Evaluate, tan 17° tan 32° + tan 32° tan 41° + tan 41° tan 17° =?
Find the value of `1/2` cosec 10 - `2/(cosec 70)` ?
If 2y . cos θ - x . sin θ = 0 and 2x . sec θ - y . cosec θ = 3, what is the value of x² + 4y²?
cos A (sec A – cos A) (cot A + tan A) = ?
If √3 tan 2θ – 3 = 0, then find the value of tanθ secθ – cosθ where 0 < θ < 90°
The maximum value of 15 sin2 θ + 8 cos2 θ is