Предмет: Математика, автор: штрих1234

упростите выражение tga*ctga-sin^2a

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Автор ответа: ilyatixonov

tga*ctga-sin^2a=1-sin^2a=cos^2a и всё тут нет ничего сложного

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2 variant.

Choose the necessary.
1. British Parliament is the body in the country.
a) judicial c) social
b) executive d) legislative

2. Parliament consists of houses -
a) two; the House of Representatives and the House of Lords;
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