State whether the following are true or false. Justify your answer.

(i) Consider a ΔABC, right-angled at B

So, Tan A < 1 is not always true

Hence, the given statement is false

Let AC be 12k, AB will be 5k, where k is a positive integer

Applying Pythagoras theorem in ΔABC, we obtain

AC² = AB² + BC²

(12k)² = (5k)² + BC²

144k² = 25k² + BC²

BC² = 119k²

BC = 10.9k

It can be observed that for given two sides AC = 12k and AB = 5k,

BC should be such that,

AC - AB < BC < AC + AB

12k - 5k < BC < 12k + 5k

7k < BC < 17 k

However, BC = 10.9k. Clearly, such a triangle is possible and hence, such value of sec A is possible Hence, the given statement is true

(iii)Abbreviation used for cosecant of angle A is cosec A. And Cos A is the abbreviation used for cosine of angle A Hence, the given statement is false

(iv)Cot A is not the product of cot and A. It is the cotangent of ∠A

Hence, the given statement is false

(v)             

In a right-angled triangle, hypotenuse is always greater than the remaining two sides. Therefore, such value of sin θ is not possible

Hence, the given statement is false