Question
If sec 2P = sin² 60⁰ + sec 60⁰ - cos² 30⁰, then
determine the value of (√3tan P + cot² P)Solution
ATQ,
sec 2P = sin² 60⁰ + sec 60⁰- cos² 30⁰
Or, sec 2P = (√3/2)² + sec 60⁰- (√3/2)²
Or, sec 2P = sec 60⁰
Or, 2P = 60
Or, 'P' = 30
So, required value = √3 X tan 30⁰ + cot² 30⁰
= √3 X (1/√3) + (√3)²
= 1 + 3 = 4
What value should come in place of (?) in the given expression.
450 ÷ 9 + 75% of 160 − 64 ÷ 4 = ?
2/5 of 3/4 of 7/9 of 14400 = ?
7/3 of 4/5 of 15/56 of ? = 83
[564 + 32 of 18 × 9 ÷ 12 + 162 ] ÷ 4 = ?
What should come in place of (?) question mark in the given expression.
(25% of 320) + (3/8 of 400) − 30 = ?
45% of 360 - 160 + ? = √324
187 ÷ 5 ÷ 0.4 = ? – 24 × 2.4
Find the simplified value of the following expression:
[{12 + (13 × 4 ÷ 2 ÷ 2) × 5 – 8} + 13 of 8]
18 × 15 + 86 – 58 =? + 38
√(24²+285-8²-172) = ?²