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Q-1- If sinA = 0.6 , find the value of (i) cosA – cotA (ii) sec2A – tan2A [5]
Q-2- If 5 tanx = 12 , find the value of sin2
x + cos2
x – 1 [5]
Q-3- If A= 600 and B= 300
, find the value of sinA cosB – cosA sinB + 1
2
[5]
Q-4- Find the magnitude of x , if
4sinx sin2x + 1 – 2 sin2x = 2 sinx [5]
Q-5- If A = 300
, show that
sin3A = 3sinA – 4 sin3A [5]
Q-6- State True (T) or False (F) of the following: [5]
a. Sin2A = 2SinA, for any acute angle A
b. For A = 300
, cos 3A is always 0
c. For any acute angle , the value of cos increases as decreases
d. 90
3
=
1
2
e. If tanx = tany then x = y
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Answer:
remember that when 8988feet was Bartholo and 88feet
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Answer:
chlorine FG hahahaha difficult
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