Q4 of 268 Page 4

Evaluate the following :

2sin230°.tan60° – 3cos260°.sec230°

We know that



tan (60o) = √3




Now putting the values;






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4

Evaluate the following :

sin30°.cos45° + cos30°.sin45°

 4

Evaluate the following :

cosec230°.tan245° – sec260°

 4

Evaluate the following :

tan60° . cosec245° + sec260°.tan45°

 4

Evaluate the following :

tan30°.sec45° + tan60°.sin30°