Question
What will come in the place of the question mark (?) in
the following equation, if '+' and '–' are interchanged and '×' and '÷' are interchanged? 39 ÷ 5 + 8 – 99 × 9 = ?Solution
Given- 39 ÷ 5 + 8 – 99 × 9 = ? Interchanged- 39 x 5 – 8 + 99 ÷ 9 195 – 8 + 11 187 + 11 = 198
If 2cosA + secA = 2√2 , 0° < < 90°, then the value of 2(sec 4 A + cosec 4 A) is:
If cos2B = sin(1.5B + 27 o), then find the measure of 'B'.
Find the simplified value of:

If cos θ + sec θ = √2, then the value of cos³ θ+ sec³ θ is:
In triangle ABC, ∠A - ∠B = 16 ° , whereas ∠A - ∠C = 8 ° , find ∠B.
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If x tan 60° + cos 45° = sec 45° then the value of x2 + 1 is
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From a point "A" on the ground, the angle of elevation to the top of a tower measuring 12 meters in height is 30°. Determine the horizontal distance be...
Find the maximum value of 20 sin A + 9 cos A.