Advertisements
Advertisements
प्रश्न
Find the value 'x', if:
उत्तर
BEDC is a rectangle.
⇒ BE
= DC
= `60sqrt(3)"m"`
In right ΔAEB,
tan30° = `"AE"/"BE"`
⇒ `(1)/sqrt(3) = "AE"/(60sqrt(3)`
⇒ AE = 60m
Now,
x = AD = AE + ED
= 60 + 15
= 75m.
APPEARS IN
संबंधित प्रश्न
Solve the following equation for A, if sin 3 A = `sqrt3 /2`
If sin 3A = 1 and 0 < A < 90°, find cos 2A
If `sqrt(2) = 1.414 and sqrt(3) = 1.732`, find the value of the following correct to two decimal places tan60°
Find the value of 'x' in each of the following:
Find the value 'x', if:
Evaluate the following: `(cos34° cos35°)/(sin57° sin56°)`
Express each of the following in terms of trigonometric ratios of angles between 0° and 45°: tan77° - cot63° + sin57°
Evaluate the following: sin35° sin45° sec55° sec45°
Evaluate the following: `(5cot5° cot15° cot25° cot35° cot45°)/(7tan45° tan55° tan65° tan75° tan85°) + (2"cosec"12° "cosec"24° cos78° cos66°)/(7sin14° sin23° sec76° sec67°)`
If tan4θ = cot(θ + 20°), find the value of θ if 4θ is an acute angle.
