Advertisements
Advertisements
Question
Use tables to find the acute angle θ, if the value of sin θ is 0.6525
Advertisements
Solution
From the tables, it is clear that sin 40° 42' = 0.6521
sin θ − sin 40° 42' = 0.6525 ; 0.6521 = 0.0004
From the tables, diff of 2' = 0.0004
Hence, θ = 40° 42' + 2' = 40° 44'
RELATED QUESTIONS
if `sin theta = 1/sqrt2` find all other trigonometric ratios of angle θ.
if `tan theta = 12/5` find the value of `(1 + sin theta)/(1 -sin theta)`
Evaluate.
sin(90° - A) cosA + cos(90° - A) sinA
Evaluate:
cosec (65° + A) – sec (25° – A)
Evaluate:
`cos70^circ/(sin20^circ) + cos59^circ/(sin31^circ) - 8 sin^2 30^circ`
Use tables to find the acute angle θ, if the value of tan θ is 0.2419
If A and B are complementary angles, prove that:
cot A cot B – sin A cos B – cos A sin B = 0
Evaluate:
3 cos 80° cosec 10°+ 2 sin 59° sec 31°
The value of 3 sin 70° sec 20° + 2 sin 49° sec 51° is
If y sin 45° cos 45° = tan2 45° – cos2 30°, then y = ______.
