Question

5. Without using tables, find the value of
sin 30° - sin 90° + 2 cos 0°
tan 30" x tan 60
(ICSE)​

Answer 1

Answer:

Sin30 = 1/2, sin90=1,coso=1

tan 30 = 1/v3, tan 60 =v3

1)Sin30-Sin90+2 coso=

1/2-I +2x1

1/2-I+2

1/2+1=3/2 Ans

tan30x tan 60

= 1/v3 xv3=1. Ans

Answer 2

Answer:

see the pic

Step-by-step explanation:

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