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Start learning 50% faster. Sign in nowwe know that sec2 x - tan2 x = 1 or (sec x + tan x)(sec x - tan x)=1 or sec x - tan x = 1/(sec x + tan x) = 1/11 now we have sec x + tan x = 11--- (1) & sec x - tan x = 1/11 ----- (2) Solving these 2 equations, we will get sec x = 61/11
What will come in place of the question mark (?) in the following questions?
18×4+96÷8=?
64.5% of 800 + 36.4% of 1500 = (?)² + 38
23 × 20 + ? = 182 + 92 + 82
5121.3 × 641.8 ÷ 80.5 = 8?
181/8 + 51/4 – 63/8 = ? + 9/2
(180 ÷ 22 ) ÷ (60% of 30) = (? ÷ 2)
1200% of 18 + √1600 + 62 = ?2 + (90 of 0.4)
89 ÷ 512 × (1/64) = (23)?
What will come in the place of question mark (?) in the given expression?
(55 × 8 + 28) × 10 = ?