(1) Zorg dat er links geen getal voor de sin of cos staat
(2) Zet de rechtse waarde om in een sin/cos-waarde m.b.v. de standaardtabel
(3) Gebruik bovenstaande regel om de vergelijking verder op te lossen
(4) Schrijf alle oplossingen op die binnen het domein liggen
VOORBEELD 1
Los exact op
a. 𝑠𝑠𝑠𝑠𝑠𝑠(𝑥𝑥 + 𝜋𝜋) = −1
b. 𝑠𝑠𝑠𝑠𝑠𝑠(𝑥𝑥) − 𝑐𝑐𝑐𝑐𝑐𝑐 2 (𝑥𝑥) = −1
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