Question
A shopkeeper first allows a discount of 25% on a certain
variety of cloth and then further gives a discount of 20% to the person holding a shareholder’s coupon. The total discount received by a person holding a shareholder’s coupon would be:Solution
Let M.P = Rs 100 Total discounted price after allowing two discounts (25% & 20%) = Rs 100 × (100 - 25)/100 × (100 - 20)/100 = Rs 100 × 75/100 × 80/100 = Rs 60 Total discount = Rs 100 – 60 = Rs 40 Required discount % = 40/100 = 40%
If cosec2A = (sin60o + tan45o X sec245o), then find the value of sin2A.
cot 4˚ x cot 47˚ x cot 42.3˚ x cot 43˚ x cot 47.7˚ x cot 86˚= ?
What is the simplified value of the given expression?
2(sin² 15° + sin² 75°) + 4sin 30° - (2sec 60° + cot 45°)
If cos 2x = 1/2, then the value of x:
If √3 tan 2θ – 3 = 0, then find the value of tanθ secθ – cosθ where 0 < θ < 90°
If 7sin²θ + 3cos²θ = 4, then find the value of θ?
If (tan 8θ · tan 2θ = 1), then find the value of (tan 10θ).
- Calculate the value of sin120 o  + cos180 o  + tan225 o .
sin2 9 ° + sin2 10 ° + sin2 11 ° + sin2 12 ° + ……… + sin2 81 ° = ?
...If tanθ + secθ = 5, find the value of sinθ.
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