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CHAPTER 11 [RENAISSANCE] 1. Define Renaissance. [2] Answer:- The term Renaissance means rebirth or revival. It stands for a complex transitional movement in Europe between medieval and modern times beginning in the 14 th century in Italy and lasting into the 17 th century. 2. In which country did it flourish first? [1] Answer:- Renaissance first flourished in Italy. 3. How did geographical exploration and invention of new trade routes influence Renaissance? [3] Answer:- The geographical exploration and invention of new trade routes influence Renaissance are as follows:- i. Due to this discovery contact between the east and the west begins to developed and there was fusion of viler. ii. ...
Television Roald Dahl is addressing all British parents and telling them that the most important thing one must learn while raising children is to keep them away from the television set. He also says that it is possible to come to a better solution to the problem by not installing a television set in their homes in the first place. Dahl speaks as if he has under taken long research on the bad effect of watching television by visiting a large number of Britisher’s. In most houses, he has found children lazing about all day and staying at the television screen with out doing any productive work at all. Next, he indulges in a bit of exaggeration that is none the less amusing when he says that some time the children stare so hard that their eyes bolls fall often. He has seen a dozen eye balls rolling about on the house. Dahl says that children’s entire attention is captured by the television screen and they cannot concentrate on anything other than what they have seen. Dahl...
Chapter 23 - Trigonometrical Ratios of Standard Angles [Including Evaluation of an Expression Involving Trigonometric Ratios] Exercise Ex. 23(A) Question 1 find the value of: ( i ) sin 30 o cos 30 o (ii) tan 30 o tan 60 o (iii) cos 2 60 o + sin 2 30 o (iv) cosec 2 60 o - tan 2 30 o (v) sin 2 30 o + cos 2 30 o + cot 2 45 o (vi) cos 2 60 o + sec 2 30 o + tan 2 45 o . Solution 1 (i) (ii) (iii) (iv) (v) (vi) Question 2 find the value of : ( i ) tan 2 30 o + tan 2 45 o + tan 2 60 o (ii) (iii) 3 sin 2 30 o + 2 tan 2 60 o - 5 cos 2 45 o . Solution 2 ( i ) (ii) (iii) 3 sin 2 30 o + 2 tan 2 60 o - 5 cos 2 45 o Question 3 Prove that: ( i ) sin 60 o cos 30 o + cos 60 o . sin 30 o = 1 (ii) cos 30 o . cos ...
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