Question
What is the scientific name of the newly discovered
orchid species in Mizoram?Solution
The new orchid species discovered near Reiek Peak, Mizoram, is named Chamaegastrodia reiekensis. It is holomycotrophic, lacks chlorophyll, and is critically endangered due to its specialised habitat.
- Calculate the value of sin120 o  + cos180 o  + tan225 o .
- If sin 2a = (7/9), then find the value of (sin a + cos a).
If sec A + tan A = 3 then the value of cot A is:
If cosx/siny = n and cosx/cosy = m, then the value of cos 2 y is:
1. m 2 /(m 2 Â + n 2 )
2. 1/(m ...The value of sec2 45˚ + 2 tan 135˚ is –
Find the value of the given trigonometric expression:
(sin 22°cos 68° + cos²22°) × sin 30° + (cos 60°tan 45°) × sec 60°
...
sin2 17˚ + sin2 19˚ + sin2 21˚ + sin2 23˚ + ……… + sin2 77˚ = ?
If tan θ + cot θ = 2 where 0 < θ < 90 ; find the value of tan30 θ + cot 29 θ.
If sec 4A = cosec (3A - 50°), where 4A and 3A are acute angles, find the value of A + 75.
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