Q9 of 80 Page 311

Let us write whether the following statements are true or false :

i. If then the least value of (sec2 α + cos2 α) is 2.


ii. The value of is 1.

(i) TRUE


⇒ let us consider α as 0°


⇒ sec20 + cos20 = 1 + 1 = 2


(ii) FALSE


⇒ cos90 = 0


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