Start learning 50% faster. Sign in now
We draw a Ʇ PT bisect QR PT = 2√21 BY PGT ∆ PQR = ½ × 8 × 2√21 = 8√21 Area of ∆ QDC = ½ × 2 × 5 × sin θ = ½ × 2 × 5 × (2√21/10) = √21 Area of ∆ BCR = ½ × 3 × 4 × sin θ = ½ × 3 × 4 × (2√21/10) =6√21 / 5 Area of ∆ PAB = ½ × 5 × 6 × sin (180 – 200) = ½ × 5 × 6 × sin2 θ = ½ × 5 × 6 × 2 sin θ cos θ = ½ × 5 × 6 × 2 × 2√21/10 × 4/10 = 12√21 / 5 = 8√21 – (√21 + 6√21/5 + 12√21/5) = 8√21 – (√21 + 18√21/5) = 8√21 – (5√21 + 18√21/5) = 8√21 – √21 (23/5) = 40√21 – √21 (23) / 5 = 17√21 / 5
If x = √7 + √6 and y = √7 - √6 , then the value of is (x2 + y2)/(x3 + y3).
...If (x + y + z) = 68, (x/z) = (3/4) and (z/y) = (2/5), then find the value of ‘y’.
(123×123×123 + 130×130×130)/(123×123 - 123×130 + 130×130) = ?
If (x2 + y2 + z2 - 4x + 6y + 13) = 0, then find the value of (x + y + z).
(288 ÷ 8)² × (144 ÷ 24)³ = 24 × ? × (51840 ÷ 20)
If (a3+1)/(a+1) = (a3-1)/(a-1) and a ≠ 1, -1. Find the value of 'a'
What is the highest common factor of (x³ - x² - x - 15) and (x³ - 3x² - 3x + 9)?
If (a + b) = 7 and ab = 9, then find the value of (a2 + b2).