Statements:
A. Magnesium deficiency symptom shows the first appearance of chlorosis mainly between veins (which remain green).
B. Iron deficiency causes interveinal chlorosis which first appears in older leaves with distinct green veins.
C. Manganese deficiency causes brownish black spots in pea and grey speck of oat.
D. Boron deficiency shows brownish or reddish young leaves and growing points of shoot and roots die.
Choose the correct answer from the options given below:
Fe deficiency cause interveinal chlorosis which first appears in new leaves not in old leaves.
The value of sec2 45˚ + 2 tan 135˚ is –
Take θ = 450
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If A + B = 450 , then the value of 2(1 + tanA) (1 + tanB) is:
